Home / 762,154.28-1,142,234.80-312,348.52

Finding the Fourth Proportional to 762,154.28, 1,142,234.80 and 312,348.52

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Solution

The fourth proportional to 762,154.28, 1,142,234.80 and 312,348.52 is: 468,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,154.28 : 1,142,234.80 = 312,348.52 : x
  2. Step 2: Convert to fraction form
    762,154.28/1,142,234.80 = 312,348.52/x
  3. Step 3: Cross multiply
    762,154.28x = 1,142,234.80 × 312,348.52
  4. Step 4: Simplify right side
    762,154.28x = 356,775,349,272.50
  5. Step 5: Solve for x
    x = 356,775,349,272.50/762,154.28
  6. Step 6: Final answer
    x = 468,114.34

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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.