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Finding the Fourth Proportional to 578,247.53, 866,872.67 and 278,938.35

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Solution

The fourth proportional to 578,247.53, 866,872.67 and 278,938.35 is: 418,167.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,247.53 : 866,872.67 = 278,938.35 : x
  2. Step 2: Convert to fraction form
    578,247.53/866,872.67 = 278,938.35/x
  3. Step 3: Cross multiply
    578,247.53x = 866,872.67 × 278,938.35
  4. Step 4: Simplify right side
    578,247.53x = 241,804,030,835.20
  5. Step 5: Solve for x
    x = 241,804,030,835.20/578,247.53
  6. Step 6: Final answer
    x = 418,167.00

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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.