Home / 494,531.80-743,437.95-429,577.90

Finding the Fourth Proportional to 494,531.80, 743,437.95 and 429,577.90

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Solution

The fourth proportional to 494,531.80, 743,437.95 and 429,577.90 is: 645,791.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,531.80 : 743,437.95 = 429,577.90 : x
  2. Step 2: Convert to fraction form
    494,531.80/743,437.95 = 429,577.90/x
  3. Step 3: Cross multiply
    494,531.80x = 743,437.95 × 429,577.90
  4. Step 4: Simplify right side
    494,531.80x = 319,364,513,341.31
  5. Step 5: Solve for x
    x = 319,364,513,341.31/494,531.80
  6. Step 6: Final answer
    x = 645,791.66

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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.