Home / 572,300.16-789,631.92-317,587.56

Finding the Fourth Proportional to 572,300.16, 789,631.92 and 317,587.56

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Solution

The fourth proportional to 572,300.16, 789,631.92 and 317,587.56 is: 438,191.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,300.16 : 789,631.92 = 317,587.56 : x
  2. Step 2: Convert to fraction form
    572,300.16/789,631.92 = 317,587.56/x
  3. Step 3: Cross multiply
    572,300.16x = 789,631.92 × 317,587.56
  4. Step 4: Simplify right side
    572,300.16x = 250,777,274,770.92
  5. Step 5: Solve for x
    x = 250,777,274,770.92/572,300.16
  6. Step 6: Final answer
    x = 438,191.87

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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.