Home / 1,070,513.76-1,605,688.56-396,278.40

Finding the Fourth Proportional to 1,070,513.76, 1,605,688.56 and 396,278.40

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Solution

The fourth proportional to 1,070,513.76, 1,605,688.56 and 396,278.40 is: 594,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,513.76 : 1,605,688.56 = 396,278.40 : x
  2. Step 2: Convert to fraction form
    1,070,513.76/1,605,688.56 = 396,278.40/x
  3. Step 3: Cross multiply
    1,070,513.76x = 1,605,688.56 × 396,278.40
  4. Step 4: Simplify right side
    1,070,513.76x = 636,299,693,455.10
  5. Step 5: Solve for x
    x = 636,299,693,455.10/1,070,513.76
  6. Step 6: Final answer
    x = 594,387.22

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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.