Home / 750,512.78-1,035,864.01-689,987.55

Finding the Fourth Proportional to 750,512.78, 1,035,864.01 and 689,987.55

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Solution

The fourth proportional to 750,512.78, 1,035,864.01 and 689,987.55 is: 952,326.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,512.78 : 1,035,864.01 = 689,987.55 : x
  2. Step 2: Convert to fraction form
    750,512.78/1,035,864.01 = 689,987.55/x
  3. Step 3: Cross multiply
    750,512.78x = 1,035,864.01 × 689,987.55
  4. Step 4: Simplify right side
    750,512.78x = 714,733,270,393.08
  5. Step 5: Solve for x
    x = 714,733,270,393.08/750,512.78
  6. Step 6: Final answer
    x = 952,326.58

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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.