Home / 1,188,802.74-1,783,262.43-478,734.87

Finding the Fourth Proportional to 1,188,802.74, 1,783,262.43 and 478,734.87

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Solution

The fourth proportional to 1,188,802.74, 1,783,262.43 and 478,734.87 is: 718,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,802.74 : 1,783,262.43 = 478,734.87 : x
  2. Step 2: Convert to fraction form
    1,188,802.74/1,783,262.43 = 478,734.87/x
  3. Step 3: Cross multiply
    1,188,802.74x = 1,783,262.43 × 478,734.87
  4. Step 4: Simplify right side
    1,188,802.74x = 853,709,907,601.93
  5. Step 5: Solve for x
    x = 853,709,907,601.93/1,188,802.74
  6. Step 6: Final answer
    x = 718,125.79

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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.