Home / 1,255,320.08-1,889,810.52-1,143,717.20

Finding the Fourth Proportional to 1,255,320.08, 1,889,810.52 and 1,143,717.20

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Solution

The fourth proportional to 1,255,320.08, 1,889,810.52 and 1,143,717.20 is: 1,721,798.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,320.08 : 1,889,810.52 = 1,143,717.20 : x
  2. Step 2: Convert to fraction form
    1,255,320.08/1,889,810.52 = 1,143,717.20/x
  3. Step 3: Cross multiply
    1,255,320.08x = 1,889,810.52 × 1,143,717.20
  4. Step 4: Simplify right side
    1,255,320.08x = 2,161,408,796,464.94
  5. Step 5: Solve for x
    x = 2,161,408,796,464.94/1,255,320.08
  6. Step 6: Final answer
    x = 1,721,798.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.