Home / 753,816.78-1,040,509.58-482,615.12

Finding the Fourth Proportional to 753,816.78, 1,040,509.58 and 482,615.12

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Solution

The fourth proportional to 753,816.78, 1,040,509.58 and 482,615.12 is: 666,164.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,816.78 : 1,040,509.58 = 482,615.12 : x
  2. Step 2: Convert to fraction form
    753,816.78/1,040,509.58 = 482,615.12/x
  3. Step 3: Cross multiply
    753,816.78x = 1,040,509.58 × 482,615.12
  4. Step 4: Simplify right side
    753,816.78x = 502,165,655,812.85
  5. Step 5: Solve for x
    x = 502,165,655,812.85/753,816.78
  6. Step 6: Final answer
    x = 666,164.07

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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.