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Finding the Fourth Proportional to 871,596.84, 1,202,672.70 and 489,550.44

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Solution

The fourth proportional to 871,596.84, 1,202,672.70 and 489,550.44 is: 675,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,596.84 : 1,202,672.70 = 489,550.44 : x
  2. Step 2: Convert to fraction form
    871,596.84/1,202,672.70 = 489,550.44/x
  3. Step 3: Cross multiply
    871,596.84x = 1,202,672.70 × 489,550.44
  4. Step 4: Simplify right side
    871,596.84x = 588,768,949,460.99
  5. Step 5: Solve for x
    x = 588,768,949,460.99/871,596.84
  6. Step 6: Final answer
    x = 675,506.06

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1.5x scale

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.