Home / 1,229,968.80-1,696,674.60-720,572.76

Finding the Fourth Proportional to 1,229,968.80, 1,696,674.60 and 720,572.76

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Solution

The fourth proportional to 1,229,968.80, 1,696,674.60 and 720,572.76 is: 993,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,968.80 : 1,696,674.60 = 720,572.76 : x
  2. Step 2: Convert to fraction form
    1,229,968.80/1,696,674.60 = 720,572.76/x
  3. Step 3: Cross multiply
    1,229,968.80x = 1,696,674.60 × 720,572.76
  4. Step 4: Simplify right side
    1,229,968.80x = 1,222,577,499,343.90
  5. Step 5: Solve for x
    x = 1,222,577,499,343.90/1,229,968.80
  6. Step 6: Final answer
    x = 993,990.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.