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Finding the Fourth Proportional to 660,307.28, 991,026.48 and 655,337.12

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Solution

The fourth proportional to 660,307.28, 991,026.48 and 655,337.12 is: 983,566.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,307.28 : 991,026.48 = 655,337.12 : x
  2. Step 2: Convert to fraction form
    660,307.28/991,026.48 = 655,337.12/x
  3. Step 3: Cross multiply
    660,307.28x = 991,026.48 × 655,337.12
  4. Step 4: Simplify right side
    660,307.28x = 649,456,439,246.94
  5. Step 5: Solve for x
    x = 649,456,439,246.94/660,307.28
  6. Step 6: Final answer
    x = 983,566.98

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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.