Home / 871,954.80-1,203,328.08-489,973.92

Finding the Fourth Proportional to 871,954.80, 1,203,328.08 and 489,973.92

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Solution

The fourth proportional to 871,954.80, 1,203,328.08 and 489,973.92 is: 676,181.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,954.80 : 1,203,328.08 = 489,973.92 : x
  2. Step 2: Convert to fraction form
    871,954.80/1,203,328.08 = 489,973.92/x
  3. Step 3: Cross multiply
    871,954.80x = 1,203,328.08 × 489,973.92
  4. Step 4: Simplify right side
    871,954.80x = 589,599,376,403.67
  5. Step 5: Solve for x
    x = 589,599,376,403.67/871,954.80
  6. Step 6: Final answer
    x = 676,181.12

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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.