Home / 762,320.34-1,143,062.79-351,543.72

Finding the Fourth Proportional to 762,320.34, 1,143,062.79 and 351,543.72

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Solution

The fourth proportional to 762,320.34, 1,143,062.79 and 351,543.72 is: 527,122.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,320.34 : 1,143,062.79 = 351,543.72 : x
  2. Step 2: Convert to fraction form
    762,320.34/1,143,062.79 = 351,543.72/x
  3. Step 3: Cross multiply
    762,320.34x = 1,143,062.79 × 351,543.72
  4. Step 4: Simplify right side
    762,320.34x = 401,836,545,390.18
  5. Step 5: Solve for x
    x = 401,836,545,390.18/762,320.34
  6. Step 6: Final answer
    x = 527,122.95

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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.