Home / 428,618.68-642,882.84-175,925.80

Finding the Fourth Proportional to 428,618.68, 642,882.84 and 175,925.80

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Solution

The fourth proportional to 428,618.68, 642,882.84 and 175,925.80 is: 263,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,618.68 : 642,882.84 = 175,925.80 : x
  2. Step 2: Convert to fraction form
    428,618.68/642,882.84 = 175,925.80/x
  3. Step 3: Cross multiply
    428,618.68x = 642,882.84 × 175,925.80
  4. Step 4: Simplify right side
    428,618.68x = 113,099,677,933.27
  5. Step 5: Solve for x
    x = 113,099,677,933.27/428,618.68
  6. Step 6: Final answer
    x = 263,870.16

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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.