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Finding the Fourth Proportional to 412,952.96, 619,809.60 and 255,488.96

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Solution

The fourth proportional to 412,952.96, 619,809.60 and 255,488.96 is: 383,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,952.96 : 619,809.60 = 255,488.96 : x
  2. Step 2: Convert to fraction form
    412,952.96/619,809.60 = 255,488.96/x
  3. Step 3: Cross multiply
    412,952.96x = 619,809.60 × 255,488.96
  4. Step 4: Simplify right side
    412,952.96x = 158,354,510,102.02
  5. Step 5: Solve for x
    x = 158,354,510,102.02/412,952.96
  6. Step 6: Final answer
    x = 383,468.64

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1.5x scale

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.