Home / 1,112,013.95-1,667,388.22-437,729.72

Finding the Fourth Proportional to 1,112,013.95, 1,667,388.22 and 437,729.72

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Solution

The fourth proportional to 1,112,013.95, 1,667,388.22 and 437,729.72 is: 656,345.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,013.95 : 1,667,388.22 = 437,729.72 : x
  2. Step 2: Convert to fraction form
    1,112,013.95/1,667,388.22 = 437,729.72/x
  3. Step 3: Cross multiply
    1,112,013.95x = 1,667,388.22 × 437,729.72
  4. Step 4: Simplify right side
    1,112,013.95x = 729,865,369,240.63
  5. Step 5: Solve for x
    x = 729,865,369,240.63/1,112,013.95
  6. Step 6: Final answer
    x = 656,345.52

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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.