Home / 380,691.36-571,861.04-247,503.12

Finding the Fourth Proportional to 380,691.36, 571,861.04 and 247,503.12

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Solution

The fourth proportional to 380,691.36, 571,861.04 and 247,503.12 is: 371,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,691.36 : 571,861.04 = 247,503.12 : x
  2. Step 2: Convert to fraction form
    380,691.36/571,861.04 = 247,503.12/x
  3. Step 3: Cross multiply
    380,691.36x = 571,861.04 × 247,503.12
  4. Step 4: Simplify right side
    380,691.36x = 141,537,391,606.45
  5. Step 5: Solve for x
    x = 141,537,391,606.45/380,691.36
  6. Step 6: Final answer
    x = 371,790.40

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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.