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Finding the Fourth Proportional to 567,050.75, 782,520.86 and 308,930.78

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Solution

The fourth proportional to 567,050.75, 782,520.86 and 308,930.78 is: 426,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,050.75 : 782,520.86 = 308,930.78 : x
  2. Step 2: Convert to fraction form
    567,050.75/782,520.86 = 308,930.78/x
  3. Step 3: Cross multiply
    567,050.75x = 782,520.86 × 308,930.78
  4. Step 4: Simplify right side
    567,050.75x = 241,744,779,646.07
  5. Step 5: Solve for x
    x = 241,744,779,646.07/567,050.75
  6. Step 6: Final answer
    x = 426,319.48

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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.