Home / 771,074.88-1,063,956.36-484,391.92

Finding the Fourth Proportional to 771,074.88, 1,063,956.36 and 484,391.92

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Solution

The fourth proportional to 771,074.88, 1,063,956.36 and 484,391.92 is: 668,381.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,074.88 : 1,063,956.36 = 484,391.92 : x
  2. Step 2: Convert to fraction form
    771,074.88/1,063,956.36 = 484,391.92/x
  3. Step 3: Cross multiply
    771,074.88x = 1,063,956.36 × 484,391.92
  4. Step 4: Simplify right side
    771,074.88x = 515,371,864,016.61
  5. Step 5: Solve for x
    x = 515,371,864,016.61/771,074.88
  6. Step 6: Final answer
    x = 668,381.08

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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.