Home / 428,690.18-591,619.04-237,703.57

Finding the Fourth Proportional to 428,690.18, 591,619.04 and 237,703.57

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Solution

The fourth proportional to 428,690.18, 591,619.04 and 237,703.57 is: 328,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,690.18 : 591,619.04 = 237,703.57 : x
  2. Step 2: Convert to fraction form
    428,690.18/591,619.04 = 237,703.57/x
  3. Step 3: Cross multiply
    428,690.18x = 591,619.04 × 237,703.57
  4. Step 4: Simplify right side
    428,690.18x = 140,629,959,221.76
  5. Step 5: Solve for x
    x = 140,629,959,221.76/428,690.18
  6. Step 6: Final answer
    x = 328,045.67

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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.