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Finding the Fourth Proportional to 578,975.88, 798,756.84 and 361,056.36

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Solution

The fourth proportional to 578,975.88, 798,756.84 and 361,056.36 is: 498,114.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,975.88 : 798,756.84 = 361,056.36 : x
  2. Step 2: Convert to fraction form
    578,975.88/798,756.84 = 361,056.36/x
  3. Step 3: Cross multiply
    578,975.88x = 798,756.84 × 361,056.36
  4. Step 4: Simplify right side
    578,975.88x = 288,396,237,175.50
  5. Step 5: Solve for x
    x = 288,396,237,175.50/578,975.88
  6. Step 6: Final answer
    x = 498,114.42

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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.