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Finding the Fourth Proportional to 637,242.38, 879,478.46 and 382,609.97

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Solution

The fourth proportional to 637,242.38, 879,478.46 and 382,609.97 is: 528,052.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,242.38 : 879,478.46 = 382,609.97 : x
  2. Step 2: Convert to fraction form
    637,242.38/879,478.46 = 382,609.97/x
  3. Step 3: Cross multiply
    637,242.38x = 879,478.46 × 382,609.97
  4. Step 4: Simplify right side
    637,242.38x = 336,497,220,885.80
  5. Step 5: Solve for x
    x = 336,497,220,885.80/637,242.38
  6. Step 6: Final answer
    x = 528,052.17

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1.5x scale

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.