Home / 769,424.20-1,154,159.87-263,978.13

Finding the Fourth Proportional to 769,424.20, 1,154,159.87 and 263,978.13

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Solution

The fourth proportional to 769,424.20, 1,154,159.87 and 263,978.13 is: 395,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,424.20 : 1,154,159.87 = 263,978.13 : x
  2. Step 2: Convert to fraction form
    769,424.20/1,154,159.87 = 263,978.13/x
  3. Step 3: Cross multiply
    769,424.20x = 1,154,159.87 × 263,978.13
  4. Step 4: Simplify right side
    769,424.20x = 304,672,964,203.64
  5. Step 5: Solve for x
    x = 304,672,964,203.64/769,424.20
  6. Step 6: Final answer
    x = 395,975.28

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Double scale
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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.