Home / 871,955.80-1,203,329.46-489,974.92

Finding the Fourth Proportional to 871,955.80, 1,203,329.46 and 489,974.92

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Solution

The fourth proportional to 871,955.80, 1,203,329.46 and 489,974.92 is: 676,182.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,955.80 : 1,203,329.46 = 489,974.92 : x
  2. Step 2: Convert to fraction form
    871,955.80/1,203,329.46 = 489,974.92/x
  3. Step 3: Cross multiply
    871,955.80x = 1,203,329.46 × 489,974.92
  4. Step 4: Simplify right side
    871,955.80x = 589,601,255,897.14
  5. Step 5: Solve for x
    x = 589,601,255,897.14/871,955.80
  6. Step 6: Final answer
    x = 676,182.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.