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Finding the Fourth Proportional to 670,757.70, 925,644.95 and 384,278.92

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Solution

The fourth proportional to 670,757.70, 925,644.95 and 384,278.92 is: 530,304.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,757.70 : 925,644.95 = 384,278.92 : x
  2. Step 2: Convert to fraction form
    670,757.70/925,644.95 = 384,278.92/x
  3. Step 3: Cross multiply
    670,757.70x = 925,644.95 × 384,278.92
  4. Step 4: Simplify right side
    670,757.70x = 355,705,841,689.45
  5. Step 5: Solve for x
    x = 355,705,841,689.45/670,757.70
  6. Step 6: Final answer
    x = 530,304.52

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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.