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Finding the Fourth Proportional to 648,043.30, 972,064.95 and 611,301.70

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Solution

The fourth proportional to 648,043.30, 972,064.95 and 611,301.70 is: 916,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,043.30 : 972,064.95 = 611,301.70 : x
  2. Step 2: Convert to fraction form
    648,043.30/972,064.95 = 611,301.70/x
  3. Step 3: Cross multiply
    648,043.30x = 972,064.95 × 611,301.70
  4. Step 4: Simplify right side
    648,043.30x = 594,224,956,445.42
  5. Step 5: Solve for x
    x = 594,224,956,445.42/648,043.30
  6. Step 6: Final answer
    x = 916,952.55

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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.