Home / 906,317.62-1,250,689.69-498,418.20

Finding the Fourth Proportional to 906,317.62, 1,250,689.69 and 498,418.20

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Solution

The fourth proportional to 906,317.62, 1,250,689.69 and 498,418.20 is: 687,801.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,317.62 : 1,250,689.69 = 498,418.20 : x
  2. Step 2: Convert to fraction form
    906,317.62/1,250,689.69 = 498,418.20/x
  3. Step 3: Cross multiply
    906,317.62x = 1,250,689.69 × 498,418.20
  4. Step 4: Simplify right side
    906,317.62x = 623,366,503,269.58
  5. Step 5: Solve for x
    x = 623,366,503,269.58/906,317.62
  6. Step 6: Final answer
    x = 687,801.37

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Half scale
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Double scale
Find fourth proportional to 906,318.62, 1,250,691.07 and 498,419.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.