Home / 465,267.12-642,139.29-284,084.70

Finding the Fourth Proportional to 465,267.12, 642,139.29 and 284,084.70

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Solution

The fourth proportional to 465,267.12, 642,139.29 and 284,084.70 is: 392,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,267.12 : 642,139.29 = 284,084.70 : x
  2. Step 2: Convert to fraction form
    465,267.12/642,139.29 = 284,084.70/x
  3. Step 3: Cross multiply
    465,267.12x = 642,139.29 × 284,084.70
  4. Step 4: Simplify right side
    465,267.12x = 182,421,947,557.86
  5. Step 5: Solve for x
    x = 182,421,947,557.86/465,267.12
  6. Step 6: Final answer
    x = 392,080.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.