Home / 1,200,133.32-1,655,403.62-769,731.72

Finding the Fourth Proportional to 1,200,133.32, 1,655,403.62 and 769,731.72

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Solution

The fourth proportional to 1,200,133.32, 1,655,403.62 and 769,731.72 is: 1,061,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,133.32 : 1,655,403.62 = 769,731.72 : x
  2. Step 2: Convert to fraction form
    1,200,133.32/1,655,403.62 = 769,731.72/x
  3. Step 3: Cross multiply
    1,200,133.32x = 1,655,403.62 × 769,731.72
  4. Step 4: Simplify right side
    1,200,133.32x = 1,274,216,671,868.17
  5. Step 5: Solve for x
    x = 1,274,216,671,868.17/1,200,133.32
  6. Step 6: Final answer
    x = 1,061,729.27

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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.