Home / 728,876.46-1,005,416.48-567,475.86

Finding the Fourth Proportional to 728,876.46, 1,005,416.48 and 567,475.86

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Solution

The fourth proportional to 728,876.46, 1,005,416.48 and 567,475.86 is: 782,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,876.46 : 1,005,416.48 = 567,475.86 : x
  2. Step 2: Convert to fraction form
    728,876.46/1,005,416.48 = 567,475.86/x
  3. Step 3: Cross multiply
    728,876.46x = 1,005,416.48 × 567,475.86
  4. Step 4: Simplify right side
    728,876.46x = 570,549,581,646.17
  5. Step 5: Solve for x
    x = 570,549,581,646.17/728,876.46
  6. Step 6: Final answer
    x = 782,779.54

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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.