Home / 818,744.70-1,228,117.05-551,055.90

Finding the Fourth Proportional to 818,744.70, 1,228,117.05 and 551,055.90

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Solution

The fourth proportional to 818,744.70, 1,228,117.05 and 551,055.90 is: 826,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,744.70 : 1,228,117.05 = 551,055.90 : x
  2. Step 2: Convert to fraction form
    818,744.70/1,228,117.05 = 551,055.90/x
  3. Step 3: Cross multiply
    818,744.70x = 1,228,117.05 × 551,055.90
  4. Step 4: Simplify right side
    818,744.70x = 676,761,146,293.10
  5. Step 5: Solve for x
    x = 676,761,146,293.10/818,744.70
  6. Step 6: Final answer
    x = 826,583.85

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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.