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Finding the Fourth Proportional to 406,755.92, 560,990.40 and 286,295.96

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Solution

The fourth proportional to 406,755.92, 560,990.40 and 286,295.96 is: 394,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,755.92 : 560,990.40 = 286,295.96 : x
  2. Step 2: Convert to fraction form
    406,755.92/560,990.40 = 286,295.96/x
  3. Step 3: Cross multiply
    406,755.92x = 560,990.40 × 286,295.96
  4. Step 4: Simplify right side
    406,755.92x = 160,609,285,118.78
  5. Step 5: Solve for x
    x = 160,609,285,118.78/406,755.92
  6. Step 6: Final answer
    x = 394,854.20

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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.