Home / 1,226,806.20-1,840,209.30-385,356.60

Finding the Fourth Proportional to 1,226,806.20, 1,840,209.30 and 385,356.60

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Solution

The fourth proportional to 1,226,806.20, 1,840,209.30 and 385,356.60 is: 578,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,806.20 : 1,840,209.30 = 385,356.60 : x
  2. Step 2: Convert to fraction form
    1,226,806.20/1,840,209.30 = 385,356.60/x
  3. Step 3: Cross multiply
    1,226,806.20x = 1,840,209.30 × 385,356.60
  4. Step 4: Simplify right side
    1,226,806.20x = 709,136,799,136.38
  5. Step 5: Solve for x
    x = 709,136,799,136.38/1,226,806.20
  6. Step 6: Final answer
    x = 578,034.90

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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.