Home / 830,620.92-1,244,121.68-545,990.16

Finding the Fourth Proportional to 830,620.92, 1,244,121.68 and 545,990.16

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Solution

The fourth proportional to 830,620.92, 1,244,121.68 and 545,990.16 is: 817,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,620.92 : 1,244,121.68 = 545,990.16 : x
  2. Step 2: Convert to fraction form
    830,620.92/1,244,121.68 = 545,990.16/x
  3. Step 3: Cross multiply
    830,620.92x = 1,244,121.68 × 545,990.16
  4. Step 4: Simplify right side
    830,620.92x = 679,278,195,122.67
  5. Step 5: Solve for x
    x = 679,278,195,122.67/830,620.92
  6. Step 6: Final answer
    x = 817,795.67

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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.