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Finding the Fourth Proportional to 501,360, 691,876.80 and 275,006.04

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Solution

The fourth proportional to 501,360, 691,876.80 and 275,006.04 is: 379,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,360 : 691,876.80 = 275,006.04 : x
  2. Step 2: Convert to fraction form
    501,360/691,876.80 = 275,006.04/x
  3. Step 3: Cross multiply
    501,360x = 691,876.80 × 275,006.04
  4. Step 4: Simplify right side
    501,360x = 190,270,298,935.87
  5. Step 5: Solve for x
    x = 190,270,298,935.87/501,360
  6. Step 6: Final answer
    x = 379,508.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.