Home / 861,961.51-1,292,055.12-382,415.15

Finding the Fourth Proportional to 861,961.51, 1,292,055.12 and 382,415.15

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Solution

The fourth proportional to 861,961.51, 1,292,055.12 and 382,415.15 is: 573,229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,961.51 : 1,292,055.12 = 382,415.15 : x
  2. Step 2: Convert to fraction form
    861,961.51/1,292,055.12 = 382,415.15/x
  3. Step 3: Cross multiply
    861,961.51x = 1,292,055.12 × 382,415.15
  4. Step 4: Simplify right side
    861,961.51x = 494,101,450,610.99
  5. Step 5: Solve for x
    x = 494,101,450,610.99/861,961.51
  6. Step 6: Final answer
    x = 573,229.13

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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.