Home / 890,591.70-1,336,049.55-291,386.10

Finding the Fourth Proportional to 890,591.70, 1,336,049.55 and 291,386.10

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Solution

The fourth proportional to 890,591.70, 1,336,049.55 and 291,386.10 is: 437,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,591.70 : 1,336,049.55 = 291,386.10 : x
  2. Step 2: Convert to fraction form
    890,591.70/1,336,049.55 = 291,386.10/x
  3. Step 3: Cross multiply
    890,591.70x = 1,336,049.55 × 291,386.10
  4. Step 4: Simplify right side
    890,591.70x = 389,306,267,781.26
  5. Step 5: Solve for x
    x = 389,306,267,781.26/890,591.70
  6. Step 6: Final answer
    x = 437,132.15

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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.