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Finding the Fourth Proportional to 648,076.30, 972,114.45 and 410,713.90

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Solution

The fourth proportional to 648,076.30, 972,114.45 and 410,713.90 is: 616,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,076.30 : 972,114.45 = 410,713.90 : x
  2. Step 2: Convert to fraction form
    648,076.30/972,114.45 = 410,713.90/x
  3. Step 3: Cross multiply
    648,076.30x = 972,114.45 × 410,713.90
  4. Step 4: Simplify right side
    648,076.30x = 399,260,917,005.86
  5. Step 5: Solve for x
    x = 399,260,917,005.86/648,076.30
  6. Step 6: Final answer
    x = 616,070.85

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.