Home / 691,149.70-1,036,724.55-292,240.90

Finding the Fourth Proportional to 691,149.70, 1,036,724.55 and 292,240.90

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Solution

The fourth proportional to 691,149.70, 1,036,724.55 and 292,240.90 is: 438,361.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,149.70 : 1,036,724.55 = 292,240.90 : x
  2. Step 2: Convert to fraction form
    691,149.70/1,036,724.55 = 292,240.90/x
  3. Step 3: Cross multiply
    691,149.70x = 1,036,724.55 × 292,240.90
  4. Step 4: Simplify right side
    691,149.70x = 302,973,315,544.10
  5. Step 5: Solve for x
    x = 302,973,315,544.10/691,149.70
  6. Step 6: Final answer
    x = 438,361.35

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Double scale
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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.