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Finding the Fourth Proportional to 434,752.80, 652,129.20 and 268,864.80

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Solution

The fourth proportional to 434,752.80, 652,129.20 and 268,864.80 is: 403,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,752.80 : 652,129.20 = 268,864.80 : x
  2. Step 2: Convert to fraction form
    434,752.80/652,129.20 = 268,864.80/x
  3. Step 3: Cross multiply
    434,752.80x = 652,129.20 × 268,864.80
  4. Step 4: Simplify right side
    434,752.80x = 175,334,586,932.16
  5. Step 5: Solve for x
    x = 175,334,586,932.16/434,752.80
  6. Step 6: Final answer
    x = 403,297.20

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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.