Home / 497,834.75-687,063.80-306,843.23

Finding the Fourth Proportional to 497,834.75, 687,063.80 and 306,843.23

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Solution

The fourth proportional to 497,834.75, 687,063.80 and 306,843.23 is: 423,475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,834.75 : 687,063.80 = 306,843.23 : x
  2. Step 2: Convert to fraction form
    497,834.75/687,063.80 = 306,843.23/x
  3. Step 3: Cross multiply
    497,834.75x = 687,063.80 × 306,843.23
  4. Step 4: Simplify right side
    497,834.75x = 210,820,875,608.07
  5. Step 5: Solve for x
    x = 210,820,875,608.07/497,834.75
  6. Step 6: Final answer
    x = 423,475.61

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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.