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Finding the Fourth Proportional to 463,530.52, 639,681.18 and 302,488.60

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Solution

The fourth proportional to 463,530.52, 639,681.18 and 302,488.60 is: 417,440.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,530.52 : 639,681.18 = 302,488.60 : x
  2. Step 2: Convert to fraction form
    463,530.52/639,681.18 = 302,488.60/x
  3. Step 3: Cross multiply
    463,530.52x = 639,681.18 × 302,488.60
  4. Step 4: Simplify right side
    463,530.52x = 193,496,264,584.55
  5. Step 5: Solve for x
    x = 193,496,264,584.55/463,530.52
  6. Step 6: Final answer
    x = 417,440.18

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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.