Home / 782,490.36-1,172,670.66-332,645.88

Finding the Fourth Proportional to 782,490.36, 1,172,670.66 and 332,645.88

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Solution

The fourth proportional to 782,490.36, 1,172,670.66 and 332,645.88 is: 498,516.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,490.36 : 1,172,670.66 = 332,645.88 : x
  2. Step 2: Convert to fraction form
    782,490.36/1,172,670.66 = 332,645.88/x
  3. Step 3: Cross multiply
    782,490.36x = 1,172,670.66 × 332,645.88
  4. Step 4: Simplify right side
    782,490.36x = 390,084,063,645.88
  5. Step 5: Solve for x
    x = 390,084,063,645.88/782,490.36
  6. Step 6: Final answer
    x = 498,516.13

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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.