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Finding the Fourth Proportional to 513,130.41, 707,375.03 and 359,690.49

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Solution

The fourth proportional to 513,130.41, 707,375.03 and 359,690.49 is: 495,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,130.41 : 707,375.03 = 359,690.49 : x
  2. Step 2: Convert to fraction form
    513,130.41/707,375.03 = 359,690.49/x
  3. Step 3: Cross multiply
    513,130.41x = 707,375.03 × 359,690.49
  4. Step 4: Simplify right side
    513,130.41x = 254,436,069,356.01
  5. Step 5: Solve for x
    x = 254,436,069,356.01/513,130.41
  6. Step 6: Final answer
    x = 495,850.69

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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.