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Finding the Fourth Proportional to 661,642.40, 924,301.90 and 661,642.40

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Solution

The fourth proportional to 661,642.40, 924,301.90 and 661,642.40 is: 924,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,642.40 : 924,301.90 = 661,642.40 : x
  2. Step 2: Convert to fraction form
    661,642.40/924,301.90 = 661,642.40/x
  3. Step 3: Cross multiply
    661,642.40x = 924,301.90 × 661,642.40
  4. Step 4: Simplify right side
    661,642.40x = 611,557,327,440.56
  5. Step 5: Solve for x
    x = 611,557,327,440.56/661,642.40
  6. Step 6: Final answer
    x = 924,301.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.