Home / 762,631.12-1,052,556.84-423,208.72

Finding the Fourth Proportional to 762,631.12, 1,052,556.84 and 423,208.72

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Solution

The fourth proportional to 762,631.12, 1,052,556.84 and 423,208.72 is: 584,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,631.12 : 1,052,556.84 = 423,208.72 : x
  2. Step 2: Convert to fraction form
    762,631.12/1,052,556.84 = 423,208.72/x
  3. Step 3: Cross multiply
    762,631.12x = 1,052,556.84 × 423,208.72
  4. Step 4: Simplify right side
    762,631.12x = 445,451,232,983.65
  5. Step 5: Solve for x
    x = 445,451,232,983.65/762,631.12
  6. Step 6: Final answer
    x = 584,097.90

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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.