Home / 1,188,632.76-1,782,929.68-478,642.92

Finding the Fourth Proportional to 1,188,632.76, 1,782,929.68 and 478,642.92

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Solution

The fourth proportional to 1,188,632.76, 1,782,929.68 and 478,642.92 is: 717,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,632.76 : 1,782,929.68 = 478,642.92 : x
  2. Step 2: Convert to fraction form
    1,188,632.76/1,782,929.68 = 478,642.92/x
  3. Step 3: Cross multiply
    1,188,632.76x = 1,782,929.68 × 478,642.92
  4. Step 4: Simplify right side
    1,188,632.76x = 853,386,668,189.87
  5. Step 5: Solve for x
    x = 853,386,668,189.87/1,188,632.76
  6. Step 6: Final answer
    x = 717,956.54

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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.