Home / 668,129.76-1,001,013.66-442,956.24

Finding the Fourth Proportional to 668,129.76, 1,001,013.66 and 442,956.24

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Solution

The fourth proportional to 668,129.76, 1,001,013.66 and 442,956.24 is: 663,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,129.76 : 1,001,013.66 = 442,956.24 : x
  2. Step 2: Convert to fraction form
    668,129.76/1,001,013.66 = 442,956.24/x
  3. Step 3: Cross multiply
    668,129.76x = 1,001,013.66 × 442,956.24
  4. Step 4: Simplify right side
    668,129.76x = 443,405,247,022.24
  5. Step 5: Solve for x
    x = 443,405,247,022.24/668,129.76
  6. Step 6: Final answer
    x = 663,651.39

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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.