Home / 672,837.29-1,008,113.46-406,037.20

Finding the Fourth Proportional to 672,837.29, 1,008,113.46 and 406,037.20

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Solution

The fourth proportional to 672,837.29, 1,008,113.46 and 406,037.20 is: 608,366.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,837.29 : 1,008,113.46 = 406,037.20 : x
  2. Step 2: Convert to fraction form
    672,837.29/1,008,113.46 = 406,037.20/x
  3. Step 3: Cross multiply
    672,837.29x = 1,008,113.46 × 406,037.20
  4. Step 4: Simplify right side
    672,837.29x = 409,331,561,540.15
  5. Step 5: Solve for x
    x = 409,331,561,540.15/672,837.29
  6. Step 6: Final answer
    x = 608,366.34

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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.