Home / 401,926.80-602,890.20-135,623.10

Finding the Fourth Proportional to 401,926.80, 602,890.20 and 135,623.10

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Solution

The fourth proportional to 401,926.80, 602,890.20 and 135,623.10 is: 203,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,926.80 : 602,890.20 = 135,623.10 : x
  2. Step 2: Convert to fraction form
    401,926.80/602,890.20 = 135,623.10/x
  3. Step 3: Cross multiply
    401,926.80x = 602,890.20 × 135,623.10
  4. Step 4: Simplify right side
    401,926.80x = 81,765,837,883.62
  5. Step 5: Solve for x
    x = 81,765,837,883.62/401,926.80
  6. Step 6: Final answer
    x = 203,434.65

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1.5x scale

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.