Home / 1,384,391.40-2,077,278.30-785,812.20

Finding the Fourth Proportional to 1,384,391.40, 2,077,278.30 and 785,812.20

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Solution

The fourth proportional to 1,384,391.40, 2,077,278.30 and 785,812.20 is: 1,179,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,391.40 : 2,077,278.30 = 785,812.20 : x
  2. Step 2: Convert to fraction form
    1,384,391.40/2,077,278.30 = 785,812.20/x
  3. Step 3: Cross multiply
    1,384,391.40x = 2,077,278.30 × 785,812.20
  4. Step 4: Simplify right side
    1,384,391.40x = 1,632,350,630,935.26
  5. Step 5: Solve for x
    x = 1,632,350,630,935.26/1,384,391.40
  6. Step 6: Final answer
    x = 1,179,110.64

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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.