Home / 2,255,655.30-3,112,516.38-1,288,848.18

Finding the Fourth Proportional to 2,255,655.30, 3,112,516.38 and 1,288,848.18

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Solution

The fourth proportional to 2,255,655.30, 3,112,516.38 and 1,288,848.18 is: 1,778,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255,655.30 : 3,112,516.38 = 1,288,848.18 : x
  2. Step 2: Convert to fraction form
    2,255,655.30/3,112,516.38 = 1,288,848.18/x
  3. Step 3: Cross multiply
    2,255,655.30x = 3,112,516.38 × 1,288,848.18
  4. Step 4: Simplify right side
    2,255,655.30x = 4,011,561,071,583.19
  5. Step 5: Solve for x
    x = 4,011,561,071,583.19/2,255,655.30
  6. Step 6: Final answer
    x = 1,778,445.97

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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.