Home / 389,401.20-584,058.60-108,946.80

Finding the Fourth Proportional to 389,401.20, 584,058.60 and 108,946.80

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Solution

The fourth proportional to 389,401.20, 584,058.60 and 108,946.80 is: 163,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,401.20 : 584,058.60 = 108,946.80 : x
  2. Step 2: Convert to fraction form
    389,401.20/584,058.60 = 108,946.80/x
  3. Step 3: Cross multiply
    389,401.20x = 584,058.60 × 108,946.80
  4. Step 4: Simplify right side
    389,401.20x = 63,631,315,482.48
  5. Step 5: Solve for x
    x = 63,631,315,482.48/389,401.20
  6. Step 6: Final answer
    x = 163,408.11

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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.