Home / 769,666.60-1,154,499.90-270,965.80

Finding the Fourth Proportional to 769,666.60, 1,154,499.90 and 270,965.80

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Solution

The fourth proportional to 769,666.60, 1,154,499.90 and 270,965.80 is: 406,448.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,666.60 : 1,154,499.90 = 270,965.80 : x
  2. Step 2: Convert to fraction form
    769,666.60/1,154,499.90 = 270,965.80/x
  3. Step 3: Cross multiply
    769,666.60x = 1,154,499.90 × 270,965.80
  4. Step 4: Simplify right side
    769,666.60x = 312,829,989,003.42
  5. Step 5: Solve for x
    x = 312,829,989,003.42/769,666.60
  6. Step 6: Final answer
    x = 406,448.70

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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.