Home / 1,208,427-1,812,253.52-398,630.18

Finding the Fourth Proportional to 1,208,427, 1,812,253.52 and 398,630.18

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Solution

The fourth proportional to 1,208,427, 1,812,253.52 and 398,630.18 is: 597,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,427 : 1,812,253.52 = 398,630.18 : x
  2. Step 2: Convert to fraction form
    1,208,427/1,812,253.52 = 398,630.18/x
  3. Step 3: Cross multiply
    1,208,427x = 1,812,253.52 × 398,630.18
  4. Step 4: Simplify right side
    1,208,427x = 722,418,935,828.82
  5. Step 5: Solve for x
    x = 722,418,935,828.82/1,208,427
  6. Step 6: Final answer
    x = 597,817.61

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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.