Home / 762,153.28-1,142,233.30-312,347.52

Finding the Fourth Proportional to 762,153.28, 1,142,233.30 and 312,347.52

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Solution

The fourth proportional to 762,153.28, 1,142,233.30 and 312,347.52 is: 468,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,153.28 : 1,142,233.30 = 312,347.52 : x
  2. Step 2: Convert to fraction form
    762,153.28/1,142,233.30 = 312,347.52/x
  3. Step 3: Cross multiply
    762,153.28x = 1,142,233.30 × 312,347.52
  4. Step 4: Simplify right side
    762,153.28x = 356,773,738,516.42
  5. Step 5: Solve for x
    x = 356,773,738,516.42/762,153.28
  6. Step 6: Final answer
    x = 468,112.84

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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.