Home / 1,277,633.86-1,915,732.20-424,248.81

Finding the Fourth Proportional to 1,277,633.86, 1,915,732.20 and 424,248.81

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Solution

The fourth proportional to 1,277,633.86, 1,915,732.20 and 424,248.81 is: 636,134.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,633.86 : 1,915,732.20 = 424,248.81 : x
  2. Step 2: Convert to fraction form
    1,277,633.86/1,915,732.20 = 424,248.81/x
  3. Step 3: Cross multiply
    1,277,633.86x = 1,915,732.20 × 424,248.81
  4. Step 4: Simplify right side
    1,277,633.86x = 812,747,116,102.99
  5. Step 5: Solve for x
    x = 812,747,116,102.99/1,277,633.86
  6. Step 6: Final answer
    x = 636,134.61

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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.