Home / 869,821.80-1,304,732.70-550,957.20

Finding the Fourth Proportional to 869,821.80, 1,304,732.70 and 550,957.20

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Solution

The fourth proportional to 869,821.80, 1,304,732.70 and 550,957.20 is: 826,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,821.80 : 1,304,732.70 = 550,957.20 : x
  2. Step 2: Convert to fraction form
    869,821.80/1,304,732.70 = 550,957.20/x
  3. Step 3: Cross multiply
    869,821.80x = 1,304,732.70 × 550,957.20
  4. Step 4: Simplify right side
    869,821.80x = 718,851,875,140.44
  5. Step 5: Solve for x
    x = 718,851,875,140.44/869,821.80
  6. Step 6: Final answer
    x = 826,435.80

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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.