Home / 413,462.20-620,366.10-133,065.40

Finding the Fourth Proportional to 413,462.20, 620,366.10 and 133,065.40

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Solution

The fourth proportional to 413,462.20, 620,366.10 and 133,065.40 is: 199,653.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,462.20 : 620,366.10 = 133,065.40 : x
  2. Step 2: Convert to fraction form
    413,462.20/620,366.10 = 133,065.40/x
  3. Step 3: Cross multiply
    413,462.20x = 620,366.10 × 133,065.40
  4. Step 4: Simplify right side
    413,462.20x = 82,549,263,242.94
  5. Step 5: Solve for x
    x = 82,549,263,242.94/413,462.20
  6. Step 6: Final answer
    x = 199,653.71

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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.