Home / 1,098,938.40-1,647,620.40-424,442.40

Finding the Fourth Proportional to 1,098,938.40, 1,647,620.40 and 424,442.40

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Solution

The fourth proportional to 1,098,938.40, 1,647,620.40 and 424,442.40 is: 636,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,938.40 : 1,647,620.40 = 424,442.40 : x
  2. Step 2: Convert to fraction form
    1,098,938.40/1,647,620.40 = 424,442.40/x
  3. Step 3: Cross multiply
    1,098,938.40x = 1,647,620.40 × 424,442.40
  4. Step 4: Simplify right side
    1,098,938.40x = 699,319,956,864.96
  5. Step 5: Solve for x
    x = 699,319,956,864.96/1,098,938.40
  6. Step 6: Final answer
    x = 636,359.56

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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.