Home / 1,578,766.50-2,368,128.60-380,679.30

Finding the Fourth Proportional to 1,578,766.50, 2,368,128.60 and 380,679.30

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Solution

The fourth proportional to 1,578,766.50, 2,368,128.60 and 380,679.30 is: 571,013.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,766.50 : 2,368,128.60 = 380,679.30 : x
  2. Step 2: Convert to fraction form
    1,578,766.50/2,368,128.60 = 380,679.30/x
  3. Step 3: Cross multiply
    1,578,766.50x = 2,368,128.60 × 380,679.30
  4. Step 4: Simplify right side
    1,578,766.50x = 901,497,537,757.98
  5. Step 5: Solve for x
    x = 901,497,537,757.98/1,578,766.50
  6. Step 6: Final answer
    x = 571,013.85

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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.