Home / 1,189,108.46-1,783,599.05-420,552.92

Finding the Fourth Proportional to 1,189,108.46, 1,783,599.05 and 420,552.92

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Solution

The fourth proportional to 1,189,108.46, 1,783,599.05 and 420,552.92 is: 630,806.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,108.46 : 1,783,599.05 = 420,552.92 : x
  2. Step 2: Convert to fraction form
    1,189,108.46/1,783,599.05 = 420,552.92/x
  3. Step 3: Cross multiply
    1,189,108.46x = 1,783,599.05 × 420,552.92
  4. Step 4: Simplify right side
    1,189,108.46x = 750,097,777,565.97
  5. Step 5: Solve for x
    x = 750,097,777,565.97/1,189,108.46
  6. Step 6: Final answer
    x = 630,806.87

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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.