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Finding the Fourth Proportional to 670,381.38, 925,144.53 and 364,478.34

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Solution

The fourth proportional to 670,381.38, 925,144.53 and 364,478.34 is: 502,990.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,381.38 : 925,144.53 = 364,478.34 : x
  2. Step 2: Convert to fraction form
    670,381.38/925,144.53 = 364,478.34/x
  3. Step 3: Cross multiply
    670,381.38x = 925,144.53 × 364,478.34
  4. Step 4: Simplify right side
    670,381.38x = 337,195,142,554.48
  5. Step 5: Solve for x
    x = 337,195,142,554.48/670,381.38
  6. Step 6: Final answer
    x = 502,990.02

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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.