Home / 782,112.20-1,175,501.10-768,115.40

Finding the Fourth Proportional to 782,112.20, 1,175,501.10 and 768,115.40

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Solution

The fourth proportional to 782,112.20, 1,175,501.10 and 768,115.40 is: 1,154,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,112.20 : 1,175,501.10 = 768,115.40 : x
  2. Step 2: Convert to fraction form
    782,112.20/1,175,501.10 = 768,115.40/x
  3. Step 3: Cross multiply
    782,112.20x = 1,175,501.10 × 768,115.40
  4. Step 4: Simplify right side
    782,112.20x = 902,920,497,626.94
  5. Step 5: Solve for x
    x = 902,920,497,626.94/782,112.20
  6. Step 6: Final answer
    x = 1,154,464.15

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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.