Home / 871,799.84-1,203,084.80-489,826.40

Finding the Fourth Proportional to 871,799.84, 1,203,084.80 and 489,826.40

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Solution

The fourth proportional to 871,799.84, 1,203,084.80 and 489,826.40 is: 675,961.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,799.84 : 1,203,084.80 = 489,826.40 : x
  2. Step 2: Convert to fraction form
    871,799.84/1,203,084.80 = 489,826.40/x
  3. Step 3: Cross multiply
    871,799.84x = 1,203,084.80 × 489,826.40
  4. Step 4: Simplify right side
    871,799.84x = 589,302,696,478.72
  5. Step 5: Solve for x
    x = 589,302,696,478.72/871,799.84
  6. Step 6: Final answer
    x = 675,961.01

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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.