Home / 460,921.20-691,381.80-382,189.20

Finding the Fourth Proportional to 460,921.20, 691,381.80 and 382,189.20

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Solution

The fourth proportional to 460,921.20, 691,381.80 and 382,189.20 is: 573,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,921.20 : 691,381.80 = 382,189.20 : x
  2. Step 2: Convert to fraction form
    460,921.20/691,381.80 = 382,189.20/x
  3. Step 3: Cross multiply
    460,921.20x = 691,381.80 × 382,189.20
  4. Step 4: Simplify right side
    460,921.20x = 264,238,657,036.56
  5. Step 5: Solve for x
    x = 264,238,657,036.56/460,921.20
  6. Step 6: Final answer
    x = 573,283.80

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Similar ratio
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1.5x scale

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.