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Finding the Fourth Proportional to 399,604.55, 596,491.76 and 349,158.62

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Solution

The fourth proportional to 399,604.55, 596,491.76 and 349,158.62 is: 521,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,604.55 : 596,491.76 = 349,158.62 : x
  2. Step 2: Convert to fraction form
    399,604.55/596,491.76 = 349,158.62/x
  3. Step 3: Cross multiply
    399,604.55x = 596,491.76 × 349,158.62
  4. Step 4: Simplify right side
    399,604.55x = 208,270,235,034.72
  5. Step 5: Solve for x
    x = 208,270,235,034.72/399,604.55
  6. Step 6: Final answer
    x = 521,190.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.