Home / 906,150.80-1,250,378.76-498,185.36

Finding the Fourth Proportional to 906,150.80, 1,250,378.76 and 498,185.36

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Solution

The fourth proportional to 906,150.80, 1,250,378.76 and 498,185.36 is: 687,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,150.80 : 1,250,378.76 = 498,185.36 : x
  2. Step 2: Convert to fraction form
    906,150.80/1,250,378.76 = 498,185.36/x
  3. Step 3: Cross multiply
    906,150.80x = 1,250,378.76 × 498,185.36
  4. Step 4: Simplify right side
    906,150.80x = 622,920,392,686.95
  5. Step 5: Solve for x
    x = 622,920,392,686.95/906,150.80
  6. Step 6: Final answer
    x = 687,435.68

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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.