Home / 2,255,608.76-3,112,905.08-1,288,718.30

Finding the Fourth Proportional to 2,255,608.76, 3,112,905.08 and 1,288,718.30

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Solution

The fourth proportional to 2,255,608.76, 3,112,905.08 and 1,288,718.30 is: 1,778,525.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255,608.76 : 3,112,905.08 = 1,288,718.30 : x
  2. Step 2: Convert to fraction form
    2,255,608.76/3,112,905.08 = 1,288,718.30/x
  3. Step 3: Cross multiply
    2,255,608.76x = 3,112,905.08 × 1,288,718.30
  4. Step 4: Simplify right side
    2,255,608.76x = 4,011,657,720,750.85
  5. Step 5: Solve for x
    x = 4,011,657,720,750.85/2,255,608.76
  6. Step 6: Final answer
    x = 1,778,525.51

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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.