Home / 887,116.20-1,330,674.30-288,096.90

Finding the Fourth Proportional to 887,116.20, 1,330,674.30 and 288,096.90

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Solution

The fourth proportional to 887,116.20, 1,330,674.30 and 288,096.90 is: 432,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,116.20 : 1,330,674.30 = 288,096.90 : x
  2. Step 2: Convert to fraction form
    887,116.20/1,330,674.30 = 288,096.90/x
  3. Step 3: Cross multiply
    887,116.20x = 1,330,674.30 × 288,096.90
  4. Step 4: Simplify right side
    887,116.20x = 383,363,140,739.67
  5. Step 5: Solve for x
    x = 383,363,140,739.67/887,116.20
  6. Step 6: Final answer
    x = 432,145.35

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Double scale
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Similar ratio
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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.