Home / 993,616.40-1,489,695.60-394,281.20

Finding the Fourth Proportional to 993,616.40, 1,489,695.60 and 394,281.20

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Solution

The fourth proportional to 993,616.40, 1,489,695.60 and 394,281.20 is: 591,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,616.40 : 1,489,695.60 = 394,281.20 : x
  2. Step 2: Convert to fraction form
    993,616.40/1,489,695.60 = 394,281.20/x
  3. Step 3: Cross multiply
    993,616.40x = 1,489,695.60 × 394,281.20
  4. Step 4: Simplify right side
    993,616.40x = 587,358,968,802.72
  5. Step 5: Solve for x
    x = 587,358,968,802.72/993,616.40
  6. Step 6: Final answer
    x = 591,132.52

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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.