Home / 1,288,560.66-1,931,987.86-614,745.96

Finding the Fourth Proportional to 1,288,560.66, 1,931,987.86 and 614,745.96

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Solution

The fourth proportional to 1,288,560.66, 1,931,987.86 and 614,745.96 is: 921,711.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,560.66 : 1,931,987.86 = 614,745.96 : x
  2. Step 2: Convert to fraction form
    1,288,560.66/1,931,987.86 = 614,745.96/x
  3. Step 3: Cross multiply
    1,288,560.66x = 1,931,987.86 × 614,745.96
  4. Step 4: Simplify right side
    1,288,560.66x = 1,187,681,731,704.05
  5. Step 5: Solve for x
    x = 1,187,681,731,704.05/1,288,560.66
  6. Step 6: Final answer
    x = 921,711.93

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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.