Home / 887,340.80-1,331,011.20-782,364.80

Finding the Fourth Proportional to 887,340.80, 1,331,011.20 and 782,364.80

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Solution

The fourth proportional to 887,340.80, 1,331,011.20 and 782,364.80 is: 1,173,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,340.80 : 1,331,011.20 = 782,364.80 : x
  2. Step 2: Convert to fraction form
    887,340.80/1,331,011.20 = 782,364.80/x
  3. Step 3: Cross multiply
    887,340.80x = 1,331,011.20 × 782,364.80
  4. Step 4: Simplify right side
    887,340.80x = 1,041,336,311,285.76
  5. Step 5: Solve for x
    x = 1,041,336,311,285.76/887,340.80
  6. Step 6: Final answer
    x = 1,173,547.20

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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.