Home / 891,380.28-1,336,938.90-260,124.60

Finding the Fourth Proportional to 891,380.28, 1,336,938.90 and 260,124.60

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Solution

The fourth proportional to 891,380.28, 1,336,938.90 and 260,124.60 is: 390,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,380.28 : 1,336,938.90 = 260,124.60 : x
  2. Step 2: Convert to fraction form
    891,380.28/1,336,938.90 = 260,124.60/x
  3. Step 3: Cross multiply
    891,380.28x = 1,336,938.90 × 260,124.60
  4. Step 4: Simplify right side
    891,380.28x = 347,770,696,586.94
  5. Step 5: Solve for x
    x = 347,770,696,586.94/891,380.28
  6. Step 6: Final answer
    x = 390,148.52

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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.