Home / 1,280,034.56-1,915,885.20-942,942.80

Finding the Fourth Proportional to 1,280,034.56, 1,915,885.20 and 942,942.80

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Solution

The fourth proportional to 1,280,034.56, 1,915,885.20 and 942,942.80 is: 1,411,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,034.56 : 1,915,885.20 = 942,942.80 : x
  2. Step 2: Convert to fraction form
    1,280,034.56/1,915,885.20 = 942,942.80/x
  3. Step 3: Cross multiply
    1,280,034.56x = 1,915,885.20 × 942,942.80
  4. Step 4: Simplify right side
    1,280,034.56x = 1,806,570,154,966.56
  5. Step 5: Solve for x
    x = 1,806,570,154,966.56/1,280,034.56
  6. Step 6: Final answer
    x = 1,411,344.83

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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.