Home / 1,255,491.80-1,880,780.10-755,370.20

Finding the Fourth Proportional to 1,255,491.80, 1,880,780.10 and 755,370.20

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Solution

The fourth proportional to 1,255,491.80, 1,880,780.10 and 755,370.20 is: 1,131,576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,491.80 : 1,880,780.10 = 755,370.20 : x
  2. Step 2: Convert to fraction form
    1,255,491.80/1,880,780.10 = 755,370.20/x
  3. Step 3: Cross multiply
    1,255,491.80x = 1,880,780.10 × 755,370.20
  4. Step 4: Simplify right side
    1,255,491.80x = 1,420,685,240,293.02
  5. Step 5: Solve for x
    x = 1,420,685,240,293.02/1,255,491.80
  6. Step 6: Final answer
    x = 1,131,576.68

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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.