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Finding the Fourth Proportional to 535,057.21, 738,378.75 and 293,334.60

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Solution

The fourth proportional to 535,057.21, 738,378.75 and 293,334.60 is: 404,801.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,057.21 : 738,378.75 = 293,334.60 : x
  2. Step 2: Convert to fraction form
    535,057.21/738,378.75 = 293,334.60/x
  3. Step 3: Cross multiply
    535,057.21x = 738,378.75 × 293,334.60
  4. Step 4: Simplify right side
    535,057.21x = 216,592,039,148.68
  5. Step 5: Solve for x
    x = 216,592,039,148.68/535,057.21
  6. Step 6: Final answer
    x = 404,801.64

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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.