Home / 887,005.40-1,330,508.10-513,757.40

Finding the Fourth Proportional to 887,005.40, 1,330,508.10 and 513,757.40

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Solution

The fourth proportional to 887,005.40, 1,330,508.10 and 513,757.40 is: 770,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,005.40 : 1,330,508.10 = 513,757.40 : x
  2. Step 2: Convert to fraction form
    887,005.40/1,330,508.10 = 513,757.40/x
  3. Step 3: Cross multiply
    887,005.40x = 1,330,508.10 × 513,757.40
  4. Step 4: Simplify right side
    887,005.40x = 683,558,382,134.94
  5. Step 5: Solve for x
    x = 683,558,382,134.94/887,005.40
  6. Step 6: Final answer
    x = 770,636.10

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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.