Home / 816,205.70-1,224,308.55-442,957.70

Finding the Fourth Proportional to 816,205.70, 1,224,308.55 and 442,957.70

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Solution

The fourth proportional to 816,205.70, 1,224,308.55 and 442,957.70 is: 664,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,205.70 : 1,224,308.55 = 442,957.70 : x
  2. Step 2: Convert to fraction form
    816,205.70/1,224,308.55 = 442,957.70/x
  3. Step 3: Cross multiply
    816,205.70x = 1,224,308.55 × 442,957.70
  4. Step 4: Simplify right side
    816,205.70x = 542,316,899,398.34
  5. Step 5: Solve for x
    x = 542,316,899,398.34/816,205.70
  6. Step 6: Final answer
    x = 664,436.55

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Half scale
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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.