Home / 971,355.52-1,340,480.39-535,791.48

Finding the Fourth Proportional to 971,355.52, 1,340,480.39 and 535,791.48

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Solution

The fourth proportional to 971,355.52, 1,340,480.39 and 535,791.48 is: 739,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,355.52 : 1,340,480.39 = 535,791.48 : x
  2. Step 2: Convert to fraction form
    971,355.52/1,340,480.39 = 535,791.48/x
  3. Step 3: Cross multiply
    971,355.52x = 1,340,480.39 × 535,791.48
  4. Step 4: Simplify right side
    971,355.52x = 718,217,978,687.45
  5. Step 5: Solve for x
    x = 718,217,978,687.45/971,355.52
  6. Step 6: Final answer
    x = 739,397.64

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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.