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Finding the Fourth Proportional to 524,834.40, 785,939.40 and 346,375.20

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Solution

The fourth proportional to 524,834.40, 785,939.40 and 346,375.20 is: 518,696.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,834.40 : 785,939.40 = 346,375.20 : x
  2. Step 2: Convert to fraction form
    524,834.40/785,939.40 = 346,375.20/x
  3. Step 3: Cross multiply
    524,834.40x = 785,939.40 × 346,375.20
  4. Step 4: Simplify right side
    524,834.40x = 272,229,916,862.88
  5. Step 5: Solve for x
    x = 272,229,916,862.88/524,834.40
  6. Step 6: Final answer
    x = 518,696.79

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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.