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Finding the Fourth Proportional to 503,685.62, 695,062.91 and 274,242.20

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Solution

The fourth proportional to 503,685.62, 695,062.91 and 274,242.20 is: 378,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,685.62 : 695,062.91 = 274,242.20 : x
  2. Step 2: Convert to fraction form
    503,685.62/695,062.91 = 274,242.20/x
  3. Step 3: Cross multiply
    503,685.62x = 695,062.91 × 274,242.20
  4. Step 4: Simplify right side
    503,685.62x = 190,615,580,205.59
  5. Step 5: Solve for x
    x = 190,615,580,205.59/503,685.62
  6. Step 6: Final answer
    x = 378,441.58

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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.