Home / 769,445.60-1,154,168.40-486,010.40

Finding the Fourth Proportional to 769,445.60, 1,154,168.40 and 486,010.40

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Solution

The fourth proportional to 769,445.60, 1,154,168.40 and 486,010.40 is: 729,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,445.60 : 1,154,168.40 = 486,010.40 : x
  2. Step 2: Convert to fraction form
    769,445.60/1,154,168.40 = 486,010.40/x
  3. Step 3: Cross multiply
    769,445.60x = 1,154,168.40 × 486,010.40
  4. Step 4: Simplify right side
    769,445.60x = 560,937,845,751.36
  5. Step 5: Solve for x
    x = 560,937,845,751.36/769,445.60
  6. Step 6: Final answer
    x = 729,015.60

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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.