Home / 1,288,393.86-1,932,197.13-614,119.89

Finding the Fourth Proportional to 1,288,393.86, 1,932,197.13 and 614,119.89

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Solution

The fourth proportional to 1,288,393.86, 1,932,197.13 and 614,119.89 is: 920,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,393.86 : 1,932,197.13 = 614,119.89 : x
  2. Step 2: Convert to fraction form
    1,288,393.86/1,932,197.13 = 614,119.89/x
  3. Step 3: Cross multiply
    1,288,393.86x = 1,932,197.13 × 614,119.89
  4. Step 4: Simplify right side
    1,288,393.86x = 1,186,600,688,933.92
  5. Step 5: Solve for x
    x = 1,186,600,688,933.92/1,288,393.86
  6. Step 6: Final answer
    x = 920,992.19

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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.