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Finding the Fourth Proportional to 650,702.66, 898,020.94 and 479,403.86

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Solution

The fourth proportional to 650,702.66, 898,020.94 and 479,403.86 is: 661,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,702.66 : 898,020.94 = 479,403.86 : x
  2. Step 2: Convert to fraction form
    650,702.66/898,020.94 = 479,403.86/x
  3. Step 3: Cross multiply
    650,702.66x = 898,020.94 × 479,403.86
  4. Step 4: Simplify right side
    650,702.66x = 430,514,704,996.83
  5. Step 5: Solve for x
    x = 430,514,704,996.83/650,702.66
  6. Step 6: Final answer
    x = 661,615.10

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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.