Home / 1,316,389.20-1,974,583.80-1,227,815.70

Finding the Fourth Proportional to 1,316,389.20, 1,974,583.80 and 1,227,815.70

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Solution

The fourth proportional to 1,316,389.20, 1,974,583.80 and 1,227,815.70 is: 1,841,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,389.20 : 1,974,583.80 = 1,227,815.70 : x
  2. Step 2: Convert to fraction form
    1,316,389.20/1,974,583.80 = 1,227,815.70/x
  3. Step 3: Cross multiply
    1,316,389.20x = 1,974,583.80 × 1,227,815.70
  4. Step 4: Simplify right side
    1,316,389.20x = 2,424,424,990,605.66
  5. Step 5: Solve for x
    x = 2,424,424,990,605.66/1,316,389.20
  6. Step 6: Final answer
    x = 1,841,723.55

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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.