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Finding the Fourth Proportional to 528,424.82, 792,780.23 and 376,813.43

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Solution

The fourth proportional to 528,424.82, 792,780.23 and 376,813.43 is: 565,322.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,424.82 : 792,780.23 = 376,813.43 : x
  2. Step 2: Convert to fraction form
    528,424.82/792,780.23 = 376,813.43/x
  3. Step 3: Cross multiply
    528,424.82x = 792,780.23 × 376,813.43
  4. Step 4: Simplify right side
    528,424.82x = 298,730,231,854.52
  5. Step 5: Solve for x
    x = 298,730,231,854.52/528,424.82
  6. Step 6: Final answer
    x = 565,322.11

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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.