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Finding the Fourth Proportional to 688,502.70, 950,114.84 and 382,571.22

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Solution

The fourth proportional to 688,502.70, 950,114.84 and 382,571.22 is: 527,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,502.70 : 950,114.84 = 382,571.22 : x
  2. Step 2: Convert to fraction form
    688,502.70/950,114.84 = 382,571.22/x
  3. Step 3: Cross multiply
    688,502.70x = 950,114.84 × 382,571.22
  4. Step 4: Simplify right side
    688,502.70x = 363,486,591,566.05
  5. Step 5: Solve for x
    x = 363,486,591,566.05/688,502.70
  6. Step 6: Final answer
    x = 527,937.79

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Double scale
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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.