Home / 871,784.55-1,203,063.74-489,811.11

Finding the Fourth Proportional to 871,784.55, 1,203,063.74 and 489,811.11

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Solution

The fourth proportional to 871,784.55, 1,203,063.74 and 489,811.11 is: 675,939.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,784.55 : 1,203,063.74 = 489,811.11 : x
  2. Step 2: Convert to fraction form
    871,784.55/1,203,063.74 = 489,811.11/x
  3. Step 3: Cross multiply
    871,784.55x = 1,203,063.74 × 489,811.11
  4. Step 4: Simplify right side
    871,784.55x = 589,273,983,441.10
  5. Step 5: Solve for x
    x = 589,273,983,441.10/871,784.55
  6. Step 6: Final answer
    x = 675,939.93

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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.