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Finding the Fourth Proportional to 552,317.42, 762,189.80 and 310,600.16

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Solution

The fourth proportional to 552,317.42, 762,189.80 and 310,600.16 is: 428,623.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,317.42 : 762,189.80 = 310,600.16 : x
  2. Step 2: Convert to fraction form
    552,317.42/762,189.80 = 310,600.16/x
  3. Step 3: Cross multiply
    552,317.42x = 762,189.80 × 310,600.16
  4. Step 4: Simplify right side
    552,317.42x = 236,736,268,466.42
  5. Step 5: Solve for x
    x = 236,736,268,466.42/552,317.42
  6. Step 6: Final answer
    x = 428,623.58

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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.