Home / 789,871.20-1,183,057.20-316,312.80

Finding the Fourth Proportional to 789,871.20, 1,183,057.20 and 316,312.80

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Solution

The fourth proportional to 789,871.20, 1,183,057.20 and 316,312.80 is: 473,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,871.20 : 1,183,057.20 = 316,312.80 : x
  2. Step 2: Convert to fraction form
    789,871.20/1,183,057.20 = 316,312.80/x
  3. Step 3: Cross multiply
    789,871.20x = 1,183,057.20 × 316,312.80
  4. Step 4: Simplify right side
    789,871.20x = 374,216,135,492.16
  5. Step 5: Solve for x
    x = 374,216,135,492.16/789,871.20
  6. Step 6: Final answer
    x = 473,768.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.