Home / 1,071,214.13-1,606,943.08-388,422.58

Finding the Fourth Proportional to 1,071,214.13, 1,606,943.08 and 388,422.58

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Solution

The fourth proportional to 1,071,214.13, 1,606,943.08 and 388,422.58 is: 582,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,214.13 : 1,606,943.08 = 388,422.58 : x
  2. Step 2: Convert to fraction form
    1,071,214.13/1,606,943.08 = 388,422.58/x
  3. Step 3: Cross multiply
    1,071,214.13x = 1,606,943.08 × 388,422.58
  4. Step 4: Simplify right side
    1,071,214.13x = 624,172,977,046.75
  5. Step 5: Solve for x
    x = 624,172,977,046.75/1,071,214.13
  6. Step 6: Final answer
    x = 582,678.07

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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.