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Finding the Fourth Proportional to 528,454.80, 792,682.74 and 247,972.32

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Solution

The fourth proportional to 528,454.80, 792,682.74 and 247,972.32 is: 371,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,454.80 : 792,682.74 = 247,972.32 : x
  2. Step 2: Convert to fraction form
    528,454.80/792,682.74 = 247,972.32/x
  3. Step 3: Cross multiply
    528,454.80x = 792,682.74 × 247,972.32
  4. Step 4: Simplify right side
    528,454.80x = 196,563,378,061.76
  5. Step 5: Solve for x
    x = 196,563,378,061.76/528,454.80
  6. Step 6: Final answer
    x = 371,958.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.