Home / 923,819.40-1,385,807.67-324,728.82

Finding the Fourth Proportional to 923,819.40, 1,385,807.67 and 324,728.82

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Solution

The fourth proportional to 923,819.40, 1,385,807.67 and 324,728.82 is: 487,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,819.40 : 1,385,807.67 = 324,728.82 : x
  2. Step 2: Convert to fraction form
    923,819.40/1,385,807.67 = 324,728.82/x
  3. Step 3: Cross multiply
    923,819.40x = 1,385,807.67 × 324,728.82
  4. Step 4: Simplify right side
    923,819.40x = 450,011,689,426.05
  5. Step 5: Solve for x
    x = 450,011,689,426.05/923,819.40
  6. Step 6: Final answer
    x = 487,120.85

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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.