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Finding the Fourth Proportional to 591,069.76, 815,944.80 and 376,504

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Solution

The fourth proportional to 591,069.76, 815,944.80 and 376,504 is: 519,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,069.76 : 815,944.80 = 376,504 : x
  2. Step 2: Convert to fraction form
    591,069.76/815,944.80 = 376,504/x
  3. Step 3: Cross multiply
    591,069.76x = 815,944.80 × 376,504
  4. Step 4: Simplify right side
    591,069.76x = 307,206,480,979.20
  5. Step 5: Solve for x
    x = 307,206,480,979.20/591,069.76
  6. Step 6: Final answer
    x = 519,746.57

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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.