Home / 762,024.30-1,143,721.72-407,341.50

Finding the Fourth Proportional to 762,024.30, 1,143,721.72 and 407,341.50

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Solution

The fourth proportional to 762,024.30, 1,143,721.72 and 407,341.50 is: 611,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,024.30 : 1,143,721.72 = 407,341.50 : x
  2. Step 2: Convert to fraction form
    762,024.30/1,143,721.72 = 407,341.50/x
  3. Step 3: Cross multiply
    762,024.30x = 1,143,721.72 × 407,341.50
  4. Step 4: Simplify right side
    762,024.30x = 465,885,321,007.38
  5. Step 5: Solve for x
    x = 465,885,321,007.38/762,024.30
  6. Step 6: Final answer
    x = 611,378.56

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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.