Home / 1,386,132.20-2,079,003.90-439,598.60

Finding the Fourth Proportional to 1,386,132.20, 2,079,003.90 and 439,598.60

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Solution

The fourth proportional to 1,386,132.20, 2,079,003.90 and 439,598.60 is: 659,336.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,132.20 : 2,079,003.90 = 439,598.60 : x
  2. Step 2: Convert to fraction form
    1,386,132.20/2,079,003.90 = 439,598.60/x
  3. Step 3: Cross multiply
    1,386,132.20x = 2,079,003.90 × 439,598.60
  4. Step 4: Simplify right side
    1,386,132.20x = 913,927,203,834.54
  5. Step 5: Solve for x
    x = 913,927,203,834.54/1,386,132.20
  6. Step 6: Final answer
    x = 659,336.25

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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.