Home / 728,774.17-1,005,711.84-402,087.17

Finding the Fourth Proportional to 728,774.17, 1,005,711.84 and 402,087.17

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Solution

The fourth proportional to 728,774.17, 1,005,711.84 and 402,087.17 is: 554,882.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,774.17 : 1,005,711.84 = 402,087.17 : x
  2. Step 2: Convert to fraction form
    728,774.17/1,005,711.84 = 402,087.17/x
  3. Step 3: Cross multiply
    728,774.17x = 1,005,711.84 × 402,087.17
  4. Step 4: Simplify right side
    728,774.17x = 404,383,827,581.09
  5. Step 5: Solve for x
    x = 404,383,827,581.09/728,774.17
  6. Step 6: Final answer
    x = 554,882.22

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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.