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Finding the Fourth Proportional to 578,372.79, 798,041.03 and 363,388.30

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Solution

The fourth proportional to 578,372.79, 798,041.03 and 363,388.30 is: 501,404.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,372.79 : 798,041.03 = 363,388.30 : x
  2. Step 2: Convert to fraction form
    578,372.79/798,041.03 = 363,388.30/x
  3. Step 3: Cross multiply
    578,372.79x = 798,041.03 × 363,388.30
  4. Step 4: Simplify right side
    578,372.79x = 289,998,771,405.01
  5. Step 5: Solve for x
    x = 289,998,771,405.01/578,372.79
  6. Step 6: Final answer
    x = 501,404.59

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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.