Home / 1,288,408.86-1,932,219.60-614,134.92

Finding the Fourth Proportional to 1,288,408.86, 1,932,219.60 and 614,134.92

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Solution

The fourth proportional to 1,288,408.86, 1,932,219.60 and 614,134.92 is: 921,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,408.86 : 1,932,219.60 = 614,134.92 : x
  2. Step 2: Convert to fraction form
    1,288,408.86/1,932,219.60 = 614,134.92/x
  3. Step 3: Cross multiply
    1,288,408.86x = 1,932,219.60 × 614,134.92
  4. Step 4: Simplify right side
    1,288,408.86x = 1,186,643,529,468.43
  5. Step 5: Solve for x
    x = 1,186,643,529,468.43/1,288,408.86
  6. Step 6: Final answer
    x = 921,014.72

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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.