Home / 818,700.17-1,227,992.69-306,267.57

Finding the Fourth Proportional to 818,700.17, 1,227,992.69 and 306,267.57

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Solution

The fourth proportional to 818,700.17, 1,227,992.69 and 306,267.57 is: 459,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,700.17 : 1,227,992.69 = 306,267.57 : x
  2. Step 2: Convert to fraction form
    818,700.17/1,227,992.69 = 306,267.57/x
  3. Step 3: Cross multiply
    818,700.17x = 1,227,992.69 × 306,267.57
  4. Step 4: Simplify right side
    818,700.17x = 376,094,335,612.73
  5. Step 5: Solve for x
    x = 376,094,335,612.73/818,700.17
  6. Step 6: Final answer
    x = 459,379.82

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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.