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Finding the Fourth Proportional to 598,909.80, 898,364.70 and 398,580.60

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Solution

The fourth proportional to 598,909.80, 898,364.70 and 398,580.60 is: 597,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,909.80 : 898,364.70 = 398,580.60 : x
  2. Step 2: Convert to fraction form
    598,909.80/898,364.70 = 398,580.60/x
  3. Step 3: Cross multiply
    598,909.80x = 898,364.70 × 398,580.60
  4. Step 4: Simplify right side
    598,909.80x = 358,070,741,144.82
  5. Step 5: Solve for x
    x = 358,070,741,144.82/598,909.80
  6. Step 6: Final answer
    x = 597,870.90

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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.