Home / 1,386,148.60-2,079,587.40-439,517.80

Finding the Fourth Proportional to 1,386,148.60, 2,079,587.40 and 439,517.80

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Solution

The fourth proportional to 1,386,148.60, 2,079,587.40 and 439,517.80 is: 659,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,148.60 : 2,079,587.40 = 439,517.80 : x
  2. Step 2: Convert to fraction form
    1,386,148.60/2,079,587.40 = 439,517.80/x
  3. Step 3: Cross multiply
    1,386,148.60x = 2,079,587.40 × 439,517.80
  4. Step 4: Simplify right side
    1,386,148.60x = 914,015,678,955.72
  5. Step 5: Solve for x
    x = 914,015,678,955.72/1,386,148.60
  6. Step 6: Final answer
    x = 659,392.28

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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.