Home / 728,200.08-1,005,272.70-564,494.93

Finding the Fourth Proportional to 728,200.08, 1,005,272.70 and 564,494.93

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Solution

The fourth proportional to 728,200.08, 1,005,272.70 and 564,494.93 is: 779,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,200.08 : 1,005,272.70 = 564,494.93 : x
  2. Step 2: Convert to fraction form
    728,200.08/1,005,272.70 = 564,494.93/x
  3. Step 3: Cross multiply
    728,200.08x = 1,005,272.70 × 564,494.93
  4. Step 4: Simplify right side
    728,200.08x = 567,471,337,391.05
  5. Step 5: Solve for x
    x = 567,471,337,391.05/728,200.08
  6. Step 6: Final answer
    x = 779,279.42

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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.