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Finding the Fourth Proportional to 528,422.68, 792,776.94 and 376,811.23

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Solution

The fourth proportional to 528,422.68, 792,776.94 and 376,811.23 is: 565,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,422.68 : 792,776.94 = 376,811.23 : x
  2. Step 2: Convert to fraction form
    528,422.68/792,776.94 = 376,811.23/x
  3. Step 3: Cross multiply
    528,422.68x = 792,776.94 × 376,811.23
  4. Step 4: Simplify right side
    528,422.68x = 298,727,251,992.98
  5. Step 5: Solve for x
    x = 298,727,251,992.98/528,422.68
  6. Step 6: Final answer
    x = 565,318.76

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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.