Home / 820,065.15-1,230,185.22-346,798.35

Finding the Fourth Proportional to 820,065.15, 1,230,185.22 and 346,798.35

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Solution

The fourth proportional to 820,065.15, 1,230,185.22 and 346,798.35 is: 520,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,065.15 : 1,230,185.22 = 346,798.35 : x
  2. Step 2: Convert to fraction form
    820,065.15/1,230,185.22 = 346,798.35/x
  3. Step 3: Cross multiply
    820,065.15x = 1,230,185.22 × 346,798.35
  4. Step 4: Simplify right side
    820,065.15x = 426,626,204,490.39
  5. Step 5: Solve for x
    x = 426,626,204,490.39/820,065.15
  6. Step 6: Final answer
    x = 520,234.53

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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.