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Finding the Fourth Proportional to 552,571.12, 762,486.34 and 310,848.69

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Solution

The fourth proportional to 552,571.12, 762,486.34 and 310,848.69 is: 428,936.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,571.12 : 762,486.34 = 310,848.69 : x
  2. Step 2: Convert to fraction form
    552,571.12/762,486.34 = 310,848.69/x
  3. Step 3: Cross multiply
    552,571.12x = 762,486.34 × 310,848.69
  4. Step 4: Simplify right side
    552,571.12x = 237,017,879,931.90
  5. Step 5: Solve for x
    x = 237,017,879,931.90/552,571.12
  6. Step 6: Final answer
    x = 428,936.42

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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.