Home / 3,519,829.72-5,279,764.02-1,275,909.40

Finding the Fourth Proportional to 3,519,829.72, 5,279,764.02 and 1,275,909.40

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Solution

The fourth proportional to 3,519,829.72, 5,279,764.02 and 1,275,909.40 is: 1,913,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519,829.72 : 5,279,764.02 = 1,275,909.40 : x
  2. Step 2: Convert to fraction form
    3,519,829.72/5,279,764.02 = 1,275,909.40/x
  3. Step 3: Cross multiply
    3,519,829.72x = 5,279,764.02 × 1,275,909.40
  4. Step 4: Simplify right side
    3,519,829.72x = 6,736,500,542,899.79
  5. Step 5: Solve for x
    x = 6,736,500,542,899.79/3,519,829.72
  6. Step 6: Final answer
    x = 1,913,871.15

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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.