Home / 1,927,806.80-2,891,191.80-805,643.60

Finding the Fourth Proportional to 1,927,806.80, 2,891,191.80 and 805,643.60

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Solution

The fourth proportional to 1,927,806.80, 2,891,191.80 and 805,643.60 is: 1,208,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,806.80 : 2,891,191.80 = 805,643.60 : x
  2. Step 2: Convert to fraction form
    1,927,806.80/2,891,191.80 = 805,643.60/x
  3. Step 3: Cross multiply
    1,927,806.80x = 2,891,191.80 × 805,643.60
  4. Step 4: Simplify right side
    1,927,806.80x = 2,329,270,170,042.48
  5. Step 5: Solve for x
    x = 2,329,270,170,042.48/1,927,806.80
  6. Step 6: Final answer
    x = 1,208,248.76

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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.