Home / 1,198,404.90-1,799,680.95-638,532.90

Finding the Fourth Proportional to 1,198,404.90, 1,799,680.95 and 638,532.90

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Solution

The fourth proportional to 1,198,404.90, 1,799,680.95 and 638,532.90 is: 958,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,404.90 : 1,799,680.95 = 638,532.90 : x
  2. Step 2: Convert to fraction form
    1,198,404.90/1,799,680.95 = 638,532.90/x
  3. Step 3: Cross multiply
    1,198,404.90x = 1,799,680.95 × 638,532.90
  4. Step 4: Simplify right side
    1,198,404.90x = 1,149,155,496,078.26
  5. Step 5: Solve for x
    x = 1,149,155,496,078.26/1,198,404.90
  6. Step 6: Final answer
    x = 958,904.20

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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.