Home / 830,538.80-1,245,808.20-822,665.60

Finding the Fourth Proportional to 830,538.80, 1,245,808.20 and 822,665.60

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Solution

The fourth proportional to 830,538.80, 1,245,808.20 and 822,665.60 is: 1,233,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,538.80 : 1,245,808.20 = 822,665.60 : x
  2. Step 2: Convert to fraction form
    830,538.80/1,245,808.20 = 822,665.60/x
  3. Step 3: Cross multiply
    830,538.80x = 1,245,808.20 × 822,665.60
  4. Step 4: Simplify right side
    830,538.80x = 1,024,883,550,337.92
  5. Step 5: Solve for x
    x = 1,024,883,550,337.92/830,538.80
  6. Step 6: Final answer
    x = 1,233,998.40

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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.