Home / 1,271,984.39-1,755,405.72-720,807.08

Finding the Fourth Proportional to 1,271,984.39, 1,755,405.72 and 720,807.08

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Solution

The fourth proportional to 1,271,984.39, 1,755,405.72 and 720,807.08 is: 994,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,984.39 : 1,755,405.72 = 720,807.08 : x
  2. Step 2: Convert to fraction form
    1,271,984.39/1,755,405.72 = 720,807.08/x
  3. Step 3: Cross multiply
    1,271,984.39x = 1,755,405.72 × 720,807.08
  4. Step 4: Simplify right side
    1,271,984.39x = 1,265,308,862,471.47
  5. Step 5: Solve for x
    x = 1,265,308,862,471.47/1,271,984.39
  6. Step 6: Final answer
    x = 994,751.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.