Home / 987,385.12-1,481,082.48-239,430.88

Finding the Fourth Proportional to 987,385.12, 1,481,082.48 and 239,430.88

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Solution

The fourth proportional to 987,385.12, 1,481,082.48 and 239,430.88 is: 359,147.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,385.12 : 1,481,082.48 = 239,430.88 : x
  2. Step 2: Convert to fraction form
    987,385.12/1,481,082.48 = 239,430.88/x
  3. Step 3: Cross multiply
    987,385.12x = 1,481,082.48 × 239,430.88
  4. Step 4: Simplify right side
    987,385.12x = 354,616,881,538.98
  5. Step 5: Solve for x
    x = 354,616,881,538.98/987,385.12
  6. Step 6: Final answer
    x = 359,147.48

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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.