Home / 769,423.20-1,154,158.37-263,977.13

Finding the Fourth Proportional to 769,423.20, 1,154,158.37 and 263,977.13

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Solution

The fourth proportional to 769,423.20, 1,154,158.37 and 263,977.13 is: 395,973.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,423.20 : 1,154,158.37 = 263,977.13 : x
  2. Step 2: Convert to fraction form
    769,423.20/1,154,158.37 = 263,977.13/x
  3. Step 3: Cross multiply
    769,423.20x = 1,154,158.37 × 263,977.13
  4. Step 4: Simplify right side
    769,423.20x = 304,671,410,141.36
  5. Step 5: Solve for x
    x = 304,671,410,141.36/769,423.20
  6. Step 6: Final answer
    x = 395,973.78

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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.