Home / 1,292,175.72-1,938,660.54-661,532.20

Finding the Fourth Proportional to 1,292,175.72, 1,938,660.54 and 661,532.20

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Solution

The fourth proportional to 1,292,175.72, 1,938,660.54 and 661,532.20 is: 992,501.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,175.72 : 1,938,660.54 = 661,532.20 : x
  2. Step 2: Convert to fraction form
    1,292,175.72/1,938,660.54 = 661,532.20/x
  3. Step 3: Cross multiply
    1,292,175.72x = 1,938,660.54 × 661,532.20
  4. Step 4: Simplify right side
    1,292,175.72x = 1,282,486,372,079.39
  5. Step 5: Solve for x
    x = 1,282,486,372,079.39/1,292,175.72
  6. Step 6: Final answer
    x = 992,501.52

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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.