Home / 2,255,678.52-3,112,548.48-1,288,871.46

Finding the Fourth Proportional to 2,255,678.52, 3,112,548.48 and 1,288,871.46

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Solution

The fourth proportional to 2,255,678.52, 3,112,548.48 and 1,288,871.46 is: 1,778,478.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255,678.52 : 3,112,548.48 = 1,288,871.46 : x
  2. Step 2: Convert to fraction form
    2,255,678.52/3,112,548.48 = 1,288,871.46/x
  3. Step 3: Cross multiply
    2,255,678.52x = 3,112,548.48 × 1,288,871.46
  4. Step 4: Simplify right side
    2,255,678.52x = 4,011,674,903,738.38
  5. Step 5: Solve for x
    x = 4,011,674,903,738.38/2,255,678.52
  6. Step 6: Final answer
    x = 1,778,478.12

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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.