Home / 486,400.70-671,239.61-268,624.06

Finding the Fourth Proportional to 486,400.70, 671,239.61 and 268,624.06

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Solution

The fourth proportional to 486,400.70, 671,239.61 and 268,624.06 is: 370,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,400.70 : 671,239.61 = 268,624.06 : x
  2. Step 2: Convert to fraction form
    486,400.70/671,239.61 = 268,624.06/x
  3. Step 3: Cross multiply
    486,400.70x = 671,239.61 × 268,624.06
  4. Step 4: Simplify right side
    486,400.70x = 180,311,110,612.94
  5. Step 5: Solve for x
    x = 180,311,110,612.94/486,400.70
  6. Step 6: Final answer
    x = 370,704.87

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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.