Home / 412,901.10-619,740.45-255,437.10

Finding the Fourth Proportional to 412,901.10, 619,740.45 and 255,437.10

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Solution

The fourth proportional to 412,901.10, 619,740.45 and 255,437.10 is: 383,396.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,901.10 : 619,740.45 = 255,437.10 : x
  2. Step 2: Convert to fraction form
    412,901.10/619,740.45 = 255,437.10/x
  3. Step 3: Cross multiply
    412,901.10x = 619,740.45 × 255,437.10
  4. Step 4: Simplify right side
    412,901.10x = 158,304,703,300.70
  5. Step 5: Solve for x
    x = 158,304,703,300.70/412,901.10
  6. Step 6: Final answer
    x = 383,396.18

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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.