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Finding the Fourth Proportional to 425,802.76, 587,616.32 and 275,162.20

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Solution

The fourth proportional to 425,802.76, 587,616.32 and 275,162.20 is: 379,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,802.76 : 587,616.32 = 275,162.20 : x
  2. Step 2: Convert to fraction form
    425,802.76/587,616.32 = 275,162.20/x
  3. Step 3: Cross multiply
    425,802.76x = 587,616.32 × 275,162.20
  4. Step 4: Simplify right side
    425,802.76x = 161,689,799,367.10
  5. Step 5: Solve for x
    x = 161,689,799,367.10/425,802.76
  6. Step 6: Final answer
    x = 379,729.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.