Home / 428,544.66-642,822.48-295,389.18

Finding the Fourth Proportional to 428,544.66, 642,822.48 and 295,389.18

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Solution

The fourth proportional to 428,544.66, 642,822.48 and 295,389.18 is: 443,087.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,544.66 : 642,822.48 = 295,389.18 : x
  2. Step 2: Convert to fraction form
    428,544.66/642,822.48 = 295,389.18/x
  3. Step 3: Cross multiply
    428,544.66x = 642,822.48 × 295,389.18
  4. Step 4: Simplify right side
    428,544.66x = 189,882,805,252.77
  5. Step 5: Solve for x
    x = 189,882,805,252.77/428,544.66
  6. Step 6: Final answer
    x = 443,087.55

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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.