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Finding the Fourth Proportional to 578,311.77, 797,975.03 and 363,299.57

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Solution

The fourth proportional to 578,311.77, 797,975.03 and 363,299.57 is: 501,293.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,311.77 : 797,975.03 = 363,299.57 : x
  2. Step 2: Convert to fraction form
    578,311.77/797,975.03 = 363,299.57/x
  3. Step 3: Cross multiply
    578,311.77x = 797,975.03 × 363,299.57
  4. Step 4: Simplify right side
    578,311.77x = 289,903,979,463.36
  5. Step 5: Solve for x
    x = 289,903,979,463.36/578,311.77
  6. Step 6: Final answer
    x = 501,293.58

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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.