Home / 1,277,708.30-1,916,147.82-424,550.84

Finding the Fourth Proportional to 1,277,708.30, 1,916,147.82 and 424,550.84

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Solution

The fourth proportional to 1,277,708.30, 1,916,147.82 and 424,550.84 is: 636,688.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,708.30 : 1,916,147.82 = 424,550.84 : x
  2. Step 2: Convert to fraction form
    1,277,708.30/1,916,147.82 = 424,550.84/x
  3. Step 3: Cross multiply
    1,277,708.30x = 1,916,147.82 × 424,550.84
  4. Step 4: Simplify right side
    1,277,708.30x = 813,502,166,545.17
  5. Step 5: Solve for x
    x = 813,502,166,545.17/1,277,708.30
  6. Step 6: Final answer
    x = 636,688.49

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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.