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Finding the Fourth Proportional to 451,488.71, 623,133.78 and 342,952.49

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Solution

The fourth proportional to 451,488.71, 623,133.78 and 342,952.49 is: 473,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,488.71 : 623,133.78 = 342,952.49 : x
  2. Step 2: Convert to fraction form
    451,488.71/623,133.78 = 342,952.49/x
  3. Step 3: Cross multiply
    451,488.71x = 623,133.78 × 342,952.49
  4. Step 4: Simplify right side
    451,488.71x = 213,705,281,454.11
  5. Step 5: Solve for x
    x = 213,705,281,454.11/451,488.71
  6. Step 6: Final answer
    x = 473,334.72

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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.