Home / 438,988.46-658,482.98-123,445.40

Finding the Fourth Proportional to 438,988.46, 658,482.98 and 123,445.40

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Solution

The fourth proportional to 438,988.46, 658,482.98 and 123,445.40 is: 185,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,988.46 : 658,482.98 = 123,445.40 : x
  2. Step 2: Convert to fraction form
    438,988.46/658,482.98 = 123,445.40/x
  3. Step 3: Cross multiply
    438,988.46x = 658,482.98 × 123,445.40
  4. Step 4: Simplify right side
    438,988.46x = 81,286,690,949.65
  5. Step 5: Solve for x
    x = 81,286,690,949.65/438,988.46
  6. Step 6: Final answer
    x = 185,168.17

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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.