Home / 1,435,652.28-1,981,184.07-815,453.10

Finding the Fourth Proportional to 1,435,652.28, 1,981,184.07 and 815,453.10

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Solution

The fourth proportional to 1,435,652.28, 1,981,184.07 and 815,453.10 is: 1,125,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,652.28 : 1,981,184.07 = 815,453.10 : x
  2. Step 2: Convert to fraction form
    1,435,652.28/1,981,184.07 = 815,453.10/x
  3. Step 3: Cross multiply
    1,435,652.28x = 1,981,184.07 × 815,453.10
  4. Step 4: Simplify right side
    1,435,652.28x = 1,615,562,691,552.12
  5. Step 5: Solve for x
    x = 1,615,562,691,552.12/1,435,652.28
  6. Step 6: Final answer
    x = 1,125,316.15

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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.