Home / 456,401.20-684,666.60-140,825.20

Finding the Fourth Proportional to 456,401.20, 684,666.60 and 140,825.20

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Solution

The fourth proportional to 456,401.20, 684,666.60 and 140,825.20 is: 211,257.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,401.20 : 684,666.60 = 140,825.20 : x
  2. Step 2: Convert to fraction form
    456,401.20/684,666.60 = 140,825.20/x
  3. Step 3: Cross multiply
    456,401.20x = 684,666.60 × 140,825.20
  4. Step 4: Simplify right side
    456,401.20x = 96,418,310,878.32
  5. Step 5: Solve for x
    x = 96,418,310,878.32/456,401.20
  6. Step 6: Final answer
    x = 211,257.79

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1.5x scale

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.