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Finding the Fourth Proportional to 647,036.20, 970,554.30 and 532,874.80

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Solution

The fourth proportional to 647,036.20, 970,554.30 and 532,874.80 is: 799,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,036.20 : 970,554.30 = 532,874.80 : x
  2. Step 2: Convert to fraction form
    647,036.20/970,554.30 = 532,874.80/x
  3. Step 3: Cross multiply
    647,036.20x = 970,554.30 × 532,874.80
  4. Step 4: Simplify right side
    647,036.20x = 517,183,928,501.64
  5. Step 5: Solve for x
    x = 517,183,928,501.64/647,036.20
  6. Step 6: Final answer
    x = 799,312.20

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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.