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Finding the Fourth Proportional to 578,179.15, 866,770.02 and 278,247.13

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Solution

The fourth proportional to 578,179.15, 866,770.02 and 278,247.13 is: 417,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,179.15 : 866,770.02 = 278,247.13 : x
  2. Step 2: Convert to fraction form
    578,179.15/866,770.02 = 278,247.13/x
  3. Step 3: Cross multiply
    578,179.15x = 866,770.02 × 278,247.13
  4. Step 4: Simplify right side
    578,179.15x = 241,176,270,435.04
  5. Step 5: Solve for x
    x = 241,176,270,435.04/578,179.15
  6. Step 6: Final answer
    x = 417,130.69

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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.