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Finding the Fourth Proportional to 578,294.10, 866,410.20 and 493,190.82

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Solution

The fourth proportional to 578,294.10, 866,410.20 and 493,190.82 is: 738,907.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,294.10 : 866,410.20 = 493,190.82 : x
  2. Step 2: Convert to fraction form
    578,294.10/866,410.20 = 493,190.82/x
  3. Step 3: Cross multiply
    578,294.10x = 866,410.20 × 493,190.82
  4. Step 4: Simplify right side
    578,294.10x = 427,305,556,994.36
  5. Step 5: Solve for x
    x = 427,305,556,994.36/578,294.10
  6. Step 6: Final answer
    x = 738,907.00

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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.