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Finding the Fourth Proportional to 435,287.20, 652,930.80 and 323,312.80

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Solution

The fourth proportional to 435,287.20, 652,930.80 and 323,312.80 is: 484,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,287.20 : 652,930.80 = 323,312.80 : x
  2. Step 2: Convert to fraction form
    435,287.20/652,930.80 = 323,312.80/x
  3. Step 3: Cross multiply
    435,287.20x = 652,930.80 × 323,312.80
  4. Step 4: Simplify right side
    435,287.20x = 211,100,885,154.24
  5. Step 5: Solve for x
    x = 211,100,885,154.24/435,287.20
  6. Step 6: Final answer
    x = 484,969.20

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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.