Home / 1,361,212.80-1,878,263.34-788,142.24

Finding the Fourth Proportional to 1,361,212.80, 1,878,263.34 and 788,142.24

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Solution

The fourth proportional to 1,361,212.80, 1,878,263.34 and 788,142.24 is: 1,087,514.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,212.80 : 1,878,263.34 = 788,142.24 : x
  2. Step 2: Convert to fraction form
    1,361,212.80/1,878,263.34 = 788,142.24/x
  3. Step 3: Cross multiply
    1,361,212.80x = 1,878,263.34 × 788,142.24
  4. Step 4: Simplify right side
    1,361,212.80x = 1,480,338,676,097.48
  5. Step 5: Solve for x
    x = 1,480,338,676,097.48/1,361,212.80
  6. Step 6: Final answer
    x = 1,087,514.51

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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.