Home / 523,239.20-721,849.28-329,303.06

Finding the Fourth Proportional to 523,239.20, 721,849.28 and 329,303.06

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Solution

The fourth proportional to 523,239.20, 721,849.28 and 329,303.06 is: 454,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,239.20 : 721,849.28 = 329,303.06 : x
  2. Step 2: Convert to fraction form
    523,239.20/721,849.28 = 329,303.06/x
  3. Step 3: Cross multiply
    523,239.20x = 721,849.28 × 329,303.06
  4. Step 4: Simplify right side
    523,239.20x = 237,707,176,762.80
  5. Step 5: Solve for x
    x = 237,707,176,762.80/523,239.20
  6. Step 6: Final answer
    x = 454,299.25

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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.