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Finding the Fourth Proportional to 598,912.30, 898,368.45 and 398,583.10

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Solution

The fourth proportional to 598,912.30, 898,368.45 and 398,583.10 is: 597,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,912.30 : 898,368.45 = 398,583.10 : x
  2. Step 2: Convert to fraction form
    598,912.30/898,368.45 = 398,583.10/x
  3. Step 3: Cross multiply
    598,912.30x = 898,368.45 × 398,583.10
  4. Step 4: Simplify right side
    598,912.30x = 358,074,481,743.20
  5. Step 5: Solve for x
    x = 358,074,481,743.20/598,912.30
  6. Step 6: Final answer
    x = 597,874.65

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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.