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Finding the Fourth Proportional to 552,642.32, 762,642.60 and 314,178.32

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Solution

The fourth proportional to 552,642.32, 762,642.60 and 314,178.32 is: 433,563.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,642.32 : 762,642.60 = 314,178.32 : x
  2. Step 2: Convert to fraction form
    552,642.32/762,642.60 = 314,178.32/x
  3. Step 3: Cross multiply
    552,642.32x = 762,642.60 × 314,178.32
  4. Step 4: Simplify right side
    552,642.32x = 239,605,770,828.43
  5. Step 5: Solve for x
    x = 239,605,770,828.43/552,642.32
  6. Step 6: Final answer
    x = 433,563.92

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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.