Home / 659,566.07-989,519.68-386,243.10

Finding the Fourth Proportional to 659,566.07, 989,519.68 and 386,243.10

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Solution

The fourth proportional to 659,566.07, 989,519.68 and 386,243.10 is: 579,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,566.07 : 989,519.68 = 386,243.10 : x
  2. Step 2: Convert to fraction form
    659,566.07/989,519.68 = 386,243.10/x
  3. Step 3: Cross multiply
    659,566.07x = 989,519.68 × 386,243.10
  4. Step 4: Simplify right side
    659,566.07x = 382,195,151,470.18
  5. Step 5: Solve for x
    x = 382,195,151,470.18/659,566.07
  6. Step 6: Final answer
    x = 579,464.54

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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.