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Finding the Fourth Proportional to 480,877.40, 722,624.67 and 256,396.43

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Solution

The fourth proportional to 480,877.40, 722,624.67 and 256,396.43 is: 385,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,877.40 : 722,624.67 = 256,396.43 : x
  2. Step 2: Convert to fraction form
    480,877.40/722,624.67 = 256,396.43/x
  3. Step 3: Cross multiply
    480,877.40x = 722,624.67 × 256,396.43
  4. Step 4: Simplify right side
    480,877.40x = 185,278,387,424.49
  5. Step 5: Solve for x
    x = 185,278,387,424.49/480,877.40
  6. Step 6: Final answer
    x = 385,292.36

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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.