Home / 891,379.28-1,336,937.40-260,123.60

Finding the Fourth Proportional to 891,379.28, 1,336,937.40 and 260,123.60

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Solution

The fourth proportional to 891,379.28, 1,336,937.40 and 260,123.60 is: 390,147.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,379.28 : 1,336,937.40 = 260,123.60 : x
  2. Step 2: Convert to fraction form
    891,379.28/1,336,937.40 = 260,123.60/x
  3. Step 3: Cross multiply
    891,379.28x = 1,336,937.40 × 260,123.60
  4. Step 4: Simplify right side
    891,379.28x = 347,768,969,462.64
  5. Step 5: Solve for x
    x = 347,768,969,462.64/891,379.28
  6. Step 6: Final answer
    x = 390,147.02

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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.