Home / 752,484.60-1,128,726.90-453,886.20

Finding the Fourth Proportional to 752,484.60, 1,128,726.90 and 453,886.20

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Solution

The fourth proportional to 752,484.60, 1,128,726.90 and 453,886.20 is: 680,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,484.60 : 1,128,726.90 = 453,886.20 : x
  2. Step 2: Convert to fraction form
    752,484.60/1,128,726.90 = 453,886.20/x
  3. Step 3: Cross multiply
    752,484.60x = 1,128,726.90 × 453,886.20
  4. Step 4: Simplify right side
    752,484.60x = 512,313,563,478.78
  5. Step 5: Solve for x
    x = 512,313,563,478.78/752,484.60
  6. Step 6: Final answer
    x = 680,829.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.