Home / 1,386,044.56-2,079,360.60-439,290.64

Finding the Fourth Proportional to 1,386,044.56, 2,079,360.60 and 439,290.64

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Solution

The fourth proportional to 1,386,044.56, 2,079,360.60 and 439,290.64 is: 659,029.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,044.56 : 2,079,360.60 = 439,290.64 : x
  2. Step 2: Convert to fraction form
    1,386,044.56/2,079,360.60 = 439,290.64/x
  3. Step 3: Cross multiply
    1,386,044.56x = 2,079,360.60 × 439,290.64
  4. Step 4: Simplify right side
    1,386,044.56x = 913,443,648,764.78
  5. Step 5: Solve for x
    x = 913,443,648,764.78/1,386,044.56
  6. Step 6: Final answer
    x = 659,029.06

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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.