Home / 1,255,691.80-1,888,203.30-1,050,405.40

Finding the Fourth Proportional to 1,255,691.80, 1,888,203.30 and 1,050,405.40

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Solution

The fourth proportional to 1,255,691.80, 1,888,203.30 and 1,050,405.40 is: 1,579,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,691.80 : 1,888,203.30 = 1,050,405.40 : x
  2. Step 2: Convert to fraction form
    1,255,691.80/1,888,203.30 = 1,050,405.40/x
  3. Step 3: Cross multiply
    1,255,691.80x = 1,888,203.30 × 1,050,405.40
  4. Step 4: Simplify right side
    1,255,691.80x = 1,983,378,942,617.82
  5. Step 5: Solve for x
    x = 1,983,378,942,617.82/1,255,691.80
  6. Step 6: Final answer
    x = 1,579,510.95

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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.