Home / 401,568.12-602,407.72-135,404.76

Finding the Fourth Proportional to 401,568.12, 602,407.72 and 135,404.76

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Solution

The fourth proportional to 401,568.12, 602,407.72 and 135,404.76 is: 203,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,568.12 : 602,407.72 = 135,404.76 : x
  2. Step 2: Convert to fraction form
    401,568.12/602,407.72 = 135,404.76/x
  3. Step 3: Cross multiply
    401,568.12x = 602,407.72 × 135,404.76
  4. Step 4: Simplify right side
    401,568.12x = 81,568,872,748.75
  5. Step 5: Solve for x
    x = 81,568,872,748.75/401,568.12
  6. Step 6: Final answer
    x = 203,125.87

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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.