Home / 728,639.58-1,005,179.43-473,897.82

Finding the Fourth Proportional to 728,639.58, 1,005,179.43 and 473,897.82

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Solution

The fourth proportional to 728,639.58, 1,005,179.43 and 473,897.82 is: 653,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,639.58 : 1,005,179.43 = 473,897.82 : x
  2. Step 2: Convert to fraction form
    728,639.58/1,005,179.43 = 473,897.82/x
  3. Step 3: Cross multiply
    728,639.58x = 1,005,179.43 × 473,897.82
  4. Step 4: Simplify right side
    728,639.58x = 476,352,340,585.84
  5. Step 5: Solve for x
    x = 476,352,340,585.84/728,639.58
  6. Step 6: Final answer
    x = 653,755.78

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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.