Home / 309,619.17-464,429.16-84,982.68

Finding the Fourth Proportional to 309,619.17, 464,429.16 and 84,982.68

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Solution

The fourth proportional to 309,619.17, 464,429.16 and 84,982.68 is: 127,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,619.17 : 464,429.16 = 84,982.68 : x
  2. Step 2: Convert to fraction form
    309,619.17/464,429.16 = 84,982.68/x
  3. Step 3: Cross multiply
    309,619.17x = 464,429.16 × 84,982.68
  4. Step 4: Simplify right side
    309,619.17x = 39,468,434,686.95
  5. Step 5: Solve for x
    x = 39,468,434,686.95/309,619.17
  6. Step 6: Final answer
    x = 127,474.13

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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.