Home / 916,751.52-1,265,055.75-554,375.21

Finding the Fourth Proportional to 916,751.52, 1,265,055.75 and 554,375.21

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Solution

The fourth proportional to 916,751.52, 1,265,055.75 and 554,375.21 is: 765,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,751.52 : 1,265,055.75 = 554,375.21 : x
  2. Step 2: Convert to fraction form
    916,751.52/1,265,055.75 = 554,375.21/x
  3. Step 3: Cross multiply
    916,751.52x = 1,265,055.75 × 554,375.21
  4. Step 4: Simplify right side
    916,751.52x = 701,315,540,742.68
  5. Step 5: Solve for x
    x = 701,315,540,742.68/916,751.52
  6. Step 6: Final answer
    x = 765,000.68

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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.