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Finding the Fourth Proportional to 598,300.20, 897,450.30 and 430,338.60

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Solution

The fourth proportional to 598,300.20, 897,450.30 and 430,338.60 is: 645,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,300.20 : 897,450.30 = 430,338.60 : x
  2. Step 2: Convert to fraction form
    598,300.20/897,450.30 = 430,338.60/x
  3. Step 3: Cross multiply
    598,300.20x = 897,450.30 × 430,338.60
  4. Step 4: Simplify right side
    598,300.20x = 386,207,505,671.58
  5. Step 5: Solve for x
    x = 386,207,505,671.58/598,300.20
  6. Step 6: Final answer
    x = 645,507.90

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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.