Home / 521,438.52-719,585.12-282,974.52

Finding the Fourth Proportional to 521,438.52, 719,585.12 and 282,974.52

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Solution

The fourth proportional to 521,438.52, 719,585.12 and 282,974.52 is: 390,504.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,438.52 : 719,585.12 = 282,974.52 : x
  2. Step 2: Convert to fraction form
    521,438.52/719,585.12 = 282,974.52/x
  3. Step 3: Cross multiply
    521,438.52x = 719,585.12 × 282,974.52
  4. Step 4: Simplify right side
    521,438.52x = 203,624,253,931.14
  5. Step 5: Solve for x
    x = 203,624,253,931.14/521,438.52
  6. Step 6: Final answer
    x = 390,504.82

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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.