Home / 812,335.53-1,120,873.64-468,123.20

Finding the Fourth Proportional to 812,335.53, 1,120,873.64 and 468,123.20

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Solution

The fourth proportional to 812,335.53, 1,120,873.64 and 468,123.20 is: 645,923.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,335.53 : 1,120,873.64 = 468,123.20 : x
  2. Step 2: Convert to fraction form
    812,335.53/1,120,873.64 = 468,123.20/x
  3. Step 3: Cross multiply
    812,335.53x = 1,120,873.64 × 468,123.20
  4. Step 4: Simplify right side
    812,335.53x = 524,706,947,207.46
  5. Step 5: Solve for x
    x = 524,706,947,207.46/812,335.53
  6. Step 6: Final answer
    x = 645,923.92

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Double scale
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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.