Home / 728,572.86-1,006,214.72-554,635.26

Finding the Fourth Proportional to 728,572.86, 1,006,214.72 and 554,635.26

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Solution

The fourth proportional to 728,572.86, 1,006,214.72 and 554,635.26 is: 765,993.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,572.86 : 1,006,214.72 = 554,635.26 : x
  2. Step 2: Convert to fraction form
    728,572.86/1,006,214.72 = 554,635.26/x
  3. Step 3: Cross multiply
    728,572.86x = 1,006,214.72 × 554,635.26
  4. Step 4: Simplify right side
    728,572.86x = 558,082,160,069.85
  5. Step 5: Solve for x
    x = 558,082,160,069.85/728,572.86
  6. Step 6: Final answer
    x = 765,993.62

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Double scale
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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.