Home / 428,317.68-591,069.58-237,329.40

Finding the Fourth Proportional to 428,317.68, 591,069.58 and 237,329.40

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Solution

The fourth proportional to 428,317.68, 591,069.58 and 237,329.40 is: 327,509.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,317.68 : 591,069.58 = 237,329.40 : x
  2. Step 2: Convert to fraction form
    428,317.68/591,069.58 = 237,329.40/x
  3. Step 3: Cross multiply
    428,317.68x = 591,069.58 × 237,329.40
  4. Step 4: Simplify right side
    428,317.68x = 140,278,188,779.65
  5. Step 5: Solve for x
    x = 140,278,188,779.65/428,317.68
  6. Step 6: Final answer
    x = 327,509.69

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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.