Home / 871,823.70-1,203,152.13-489,849.30

Finding the Fourth Proportional to 871,823.70, 1,203,152.13 and 489,849.30

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Solution

The fourth proportional to 871,823.70, 1,203,152.13 and 489,849.30 is: 676,011.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,823.70 : 1,203,152.13 = 489,849.30 : x
  2. Step 2: Convert to fraction form
    871,823.70/1,203,152.13 = 489,849.30/x
  3. Step 3: Cross multiply
    871,823.70x = 1,203,152.13 × 489,849.30
  4. Step 4: Simplify right side
    871,823.70x = 589,363,228,674.01
  5. Step 5: Solve for x
    x = 589,363,228,674.01/871,823.70
  6. Step 6: Final answer
    x = 676,011.94

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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.