Home / 569,949.76-786,507.04-311,825.44

Finding the Fourth Proportional to 569,949.76, 786,507.04 and 311,825.44

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Solution

The fourth proportional to 569,949.76, 786,507.04 and 311,825.44 is: 430,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,949.76 : 786,507.04 = 311,825.44 : x
  2. Step 2: Convert to fraction form
    569,949.76/786,507.04 = 311,825.44/x
  3. Step 3: Cross multiply
    569,949.76x = 786,507.04 × 311,825.44
  4. Step 4: Simplify right side
    569,949.76x = 245,252,903,811.10
  5. Step 5: Solve for x
    x = 245,252,903,811.10/569,949.76
  6. Step 6: Final answer
    x = 430,306.18

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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.