Home / 906,107.45-1,250,460.41-498,240.36

Finding the Fourth Proportional to 906,107.45, 1,250,460.41 and 498,240.36

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Solution

The fourth proportional to 906,107.45, 1,250,460.41 and 498,240.36 is: 687,589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,107.45 : 1,250,460.41 = 498,240.36 : x
  2. Step 2: Convert to fraction form
    906,107.45/1,250,460.41 = 498,240.36/x
  3. Step 3: Cross multiply
    906,107.45x = 1,250,460.41 × 498,240.36
  4. Step 4: Simplify right side
    906,107.45x = 623,029,842,352.95
  5. Step 5: Solve for x
    x = 623,029,842,352.95/906,107.45
  6. Step 6: Final answer
    x = 687,589.36

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Half scale
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Double scale
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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.