Home / 456,401.20-684,018.60-331,596.40

Finding the Fourth Proportional to 456,401.20, 684,018.60 and 331,596.40

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Solution

The fourth proportional to 456,401.20, 684,018.60 and 331,596.40 is: 496,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,401.20 : 684,018.60 = 331,596.40 : x
  2. Step 2: Convert to fraction form
    456,401.20/684,018.60 = 331,596.40/x
  3. Step 3: Cross multiply
    456,401.20x = 684,018.60 × 331,596.40
  4. Step 4: Simplify right side
    456,401.20x = 226,818,105,293.04
  5. Step 5: Solve for x
    x = 226,818,105,293.04/456,401.20
  6. Step 6: Final answer
    x = 496,970.88

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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.