Home / 983,786.58-1,475,732.61-309,920.61

Finding the Fourth Proportional to 983,786.58, 1,475,732.61 and 309,920.61

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Solution

The fourth proportional to 983,786.58, 1,475,732.61 and 309,920.61 is: 464,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,786.58 : 1,475,732.61 = 309,920.61 : x
  2. Step 2: Convert to fraction form
    983,786.58/1,475,732.61 = 309,920.61/x
  3. Step 3: Cross multiply
    983,786.58x = 1,475,732.61 × 309,920.61
  4. Step 4: Simplify right side
    983,786.58x = 457,359,950,688.09
  5. Step 5: Solve for x
    x = 457,359,950,688.09/983,786.58
  6. Step 6: Final answer
    x = 464,897.53

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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.