Home / 891,321.21-1,337,100.89-260,225.91

Finding the Fourth Proportional to 891,321.21, 1,337,100.89 and 260,225.91

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Solution

The fourth proportional to 891,321.21, 1,337,100.89 and 260,225.91 is: 390,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,321.21 : 1,337,100.89 = 260,225.91 : x
  2. Step 2: Convert to fraction form
    891,321.21/1,337,100.89 = 260,225.91/x
  3. Step 3: Cross multiply
    891,321.21x = 1,337,100.89 × 260,225.91
  4. Step 4: Simplify right side
    891,321.21x = 347,948,294,560.93
  5. Step 5: Solve for x
    x = 347,948,294,560.93/891,321.21
  6. Step 6: Final answer
    x = 390,373.63

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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.