Home / 891,366.28-1,336,917.90-260,110.60

Finding the Fourth Proportional to 891,366.28, 1,336,917.90 and 260,110.60

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Solution

The fourth proportional to 891,366.28, 1,336,917.90 and 260,110.60 is: 390,127.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,366.28 : 1,336,917.90 = 260,110.60 : x
  2. Step 2: Convert to fraction form
    891,366.28/1,336,917.90 = 260,110.60/x
  3. Step 3: Cross multiply
    891,366.28x = 1,336,917.90 × 260,110.60
  4. Step 4: Simplify right side
    891,366.28x = 347,746,517,119.74
  5. Step 5: Solve for x
    x = 347,746,517,119.74/891,366.28
  6. Step 6: Final answer
    x = 390,127.52

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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.