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Finding the Fourth Proportional to 578,373.80, 798,042.41 and 363,389.30

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Solution

The fourth proportional to 578,373.80, 798,042.41 and 363,389.30 is: 501,405.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,373.80 : 798,042.41 = 363,389.30 : x
  2. Step 2: Convert to fraction form
    578,373.80/798,042.41 = 363,389.30/x
  3. Step 3: Cross multiply
    578,373.80x = 798,042.41 × 363,389.30
  4. Step 4: Simplify right side
    578,373.80x = 290,000,066,933.05
  5. Step 5: Solve for x
    x = 290,000,066,933.05/578,373.80
  6. Step 6: Final answer
    x = 501,405.96

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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.