Home / 830,505.80-1,245,758.70-822,632.60

Finding the Fourth Proportional to 830,505.80, 1,245,758.70 and 822,632.60

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Solution

The fourth proportional to 830,505.80, 1,245,758.70 and 822,632.60 is: 1,233,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,505.80 : 1,245,758.70 = 822,632.60 : x
  2. Step 2: Convert to fraction form
    830,505.80/1,245,758.70 = 822,632.60/x
  3. Step 3: Cross multiply
    830,505.80x = 1,245,758.70 × 822,632.60
  4. Step 4: Simplify right side
    830,505.80x = 1,024,801,718,353.62
  5. Step 5: Solve for x
    x = 1,024,801,718,353.62/830,505.80
  6. Step 6: Final answer
    x = 1,233,948.90

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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.