Home / 816,204.70-1,224,307.05-442,956.70

Finding the Fourth Proportional to 816,204.70, 1,224,307.05 and 442,956.70

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Solution

The fourth proportional to 816,204.70, 1,224,307.05 and 442,956.70 is: 664,435.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,204.70 : 1,224,307.05 = 442,956.70 : x
  2. Step 2: Convert to fraction form
    816,204.70/1,224,307.05 = 442,956.70/x
  3. Step 3: Cross multiply
    816,204.70x = 1,224,307.05 × 442,956.70
  4. Step 4: Simplify right side
    816,204.70x = 542,315,010,654.74
  5. Step 5: Solve for x
    x = 542,315,010,654.74/816,204.70
  6. Step 6: Final answer
    x = 664,435.05

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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.