Home / 778,981.80-1,167,816.60-405,004.80

Finding the Fourth Proportional to 778,981.80, 1,167,816.60 and 405,004.80

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Solution

The fourth proportional to 778,981.80, 1,167,816.60 and 405,004.80 is: 607,166.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,981.80 : 1,167,816.60 = 405,004.80 : x
  2. Step 2: Convert to fraction form
    778,981.80/1,167,816.60 = 405,004.80/x
  3. Step 3: Cross multiply
    778,981.80x = 1,167,816.60 × 405,004.80
  4. Step 4: Simplify right side
    778,981.80x = 472,971,328,519.68
  5. Step 5: Solve for x
    x = 472,971,328,519.68/778,981.80
  6. Step 6: Final answer
    x = 607,166.08

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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.