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Finding the Fourth Proportional to 778,480, 1,167,720 and 187,504

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Solution

The fourth proportional to 778,480, 1,167,720 and 187,504 is: 281,256

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,480 : 1,167,720 = 187,504 : x
  2. Step 2: Convert to fraction form
    778,480/1,167,720 = 187,504/x
  3. Step 3: Cross multiply
    778,480x = 1,167,720 × 187,504
  4. Step 4: Simplify right side
    778,480x = 218,952,170,880
  5. Step 5: Solve for x
    x = 218,952,170,880/778,480
  6. Step 6: Final answer
    x = 281,256

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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.