Home / 1,386,518.72-2,079,772.61-439,963.25

Finding the Fourth Proportional to 1,386,518.72, 2,079,772.61 and 439,963.25

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Solution

The fourth proportional to 1,386,518.72, 2,079,772.61 and 439,963.25 is: 659,943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,518.72 : 2,079,772.61 = 439,963.25 : x
  2. Step 2: Convert to fraction form
    1,386,518.72/2,079,772.61 = 439,963.25/x
  3. Step 3: Cross multiply
    1,386,518.72x = 2,079,772.61 × 439,963.25
  4. Step 4: Simplify right side
    1,386,518.72x = 915,023,504,157.90
  5. Step 5: Solve for x
    x = 915,023,504,157.90/1,386,518.72
  6. Step 6: Final answer
    x = 659,943.13

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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.