Home / 687,717.52-1,030,234.34-450,340.54

Finding the Fourth Proportional to 687,717.52, 1,030,234.34 and 450,340.54

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Solution

The fourth proportional to 687,717.52, 1,030,234.34 and 450,340.54 is: 674,632.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,717.52 : 1,030,234.34 = 450,340.54 : x
  2. Step 2: Convert to fraction form
    687,717.52/1,030,234.34 = 450,340.54/x
  3. Step 3: Cross multiply
    687,717.52x = 1,030,234.34 × 450,340.54
  4. Step 4: Simplify right side
    687,717.52x = 463,956,289,002.14
  5. Step 5: Solve for x
    x = 463,956,289,002.14/687,717.52
  6. Step 6: Final answer
    x = 674,632.06

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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.