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Finding the Fourth Proportional to 501,553, 692,143.14 and 275,213.08

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Solution

The fourth proportional to 501,553, 692,143.14 and 275,213.08 is: 379,794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,553 : 692,143.14 = 275,213.08 : x
  2. Step 2: Convert to fraction form
    501,553/692,143.14 = 275,213.08/x
  3. Step 3: Cross multiply
    501,553x = 692,143.14 × 275,213.08
  4. Step 4: Simplify right side
    501,553x = 190,486,845,360.27
  5. Step 5: Solve for x
    x = 190,486,845,360.27/501,553
  6. Step 6: Final answer
    x = 379,794.05

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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.