Home / 414,822.20-620,678.10-377,497.40

Finding the Fourth Proportional to 414,822.20, 620,678.10 and 377,497.40

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Solution

The fourth proportional to 414,822.20, 620,678.10 and 377,497.40 is: 564,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,822.20 : 620,678.10 = 377,497.40 : x
  2. Step 2: Convert to fraction form
    414,822.20/620,678.10 = 377,497.40/x
  3. Step 3: Cross multiply
    414,822.20x = 620,678.10 × 377,497.40
  4. Step 4: Simplify right side
    414,822.20x = 234,304,368,986.94
  5. Step 5: Solve for x
    x = 234,304,368,986.94/414,822.20
  6. Step 6: Final answer
    x = 564,830.83

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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.