Home / 1,287,812.17-1,931,716.50-489,092.23

Finding the Fourth Proportional to 1,287,812.17, 1,931,716.50 and 489,092.23

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Solution

The fourth proportional to 1,287,812.17, 1,931,716.50 and 489,092.23 is: 733,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,812.17 : 1,931,716.50 = 489,092.23 : x
  2. Step 2: Convert to fraction form
    1,287,812.17/1,931,716.50 = 489,092.23/x
  3. Step 3: Cross multiply
    1,287,812.17x = 1,931,716.50 × 489,092.23
  4. Step 4: Simplify right side
    1,287,812.17x = 944,787,530,712.80
  5. Step 5: Solve for x
    x = 944,787,530,712.80/1,287,812.17
  6. Step 6: Final answer
    x = 733,637.68

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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.