Home / 857,713.80-1,286,570.70-842,968.20

Finding the Fourth Proportional to 857,713.80, 1,286,570.70 and 842,968.20

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Solution

The fourth proportional to 857,713.80, 1,286,570.70 and 842,968.20 is: 1,264,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,713.80 : 1,286,570.70 = 842,968.20 : x
  2. Step 2: Convert to fraction form
    857,713.80/1,286,570.70 = 842,968.20/x
  3. Step 3: Cross multiply
    857,713.80x = 1,286,570.70 × 842,968.20
  4. Step 4: Simplify right side
    857,713.80x = 1,084,538,187,151.74
  5. Step 5: Solve for x
    x = 1,084,538,187,151.74/857,713.80
  6. Step 6: Final answer
    x = 1,264,452.30

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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.