Home / 1,098,603.60-1,647,905.40-389,432.40

Finding the Fourth Proportional to 1,098,603.60, 1,647,905.40 and 389,432.40

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Solution

The fourth proportional to 1,098,603.60, 1,647,905.40 and 389,432.40 is: 584,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,603.60 : 1,647,905.40 = 389,432.40 : x
  2. Step 2: Convert to fraction form
    1,098,603.60/1,647,905.40 = 389,432.40/x
  3. Step 3: Cross multiply
    1,098,603.60x = 1,647,905.40 × 389,432.40
  4. Step 4: Simplify right side
    1,098,603.60x = 641,747,754,894.96
  5. Step 5: Solve for x
    x = 641,747,754,894.96/1,098,603.60
  6. Step 6: Final answer
    x = 584,148.60

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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.