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Finding the Fourth Proportional to 867,114.60, 1,300,671.90 and 306,205.80

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Solution

The fourth proportional to 867,114.60, 1,300,671.90 and 306,205.80 is: 459,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,114.60 : 1,300,671.90 = 306,205.80 : x
  2. Step 2: Convert to fraction form
    867,114.60/1,300,671.90 = 306,205.80/x
  3. Step 3: Cross multiply
    867,114.60x = 1,300,671.90 × 306,205.80
  4. Step 4: Simplify right side
    867,114.60x = 398,273,279,677.02
  5. Step 5: Solve for x
    x = 398,273,279,677.02/867,114.60
  6. Step 6: Final answer
    x = 459,308.70

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Similar ratio
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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.