Home / 992,678.24-1,489,183.45-779,437.55

Finding the Fourth Proportional to 992,678.24, 1,489,183.45 and 779,437.55

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Solution

The fourth proportional to 992,678.24, 1,489,183.45 and 779,437.55 is: 1,169,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,678.24 : 1,489,183.45 = 779,437.55 : x
  2. Step 2: Convert to fraction form
    992,678.24/1,489,183.45 = 779,437.55/x
  3. Step 3: Cross multiply
    992,678.24x = 1,489,183.45 × 779,437.55
  4. Step 4: Simplify right side
    992,678.24x = 1,160,725,501,542.91
  5. Step 5: Solve for x
    x = 1,160,725,501,542.91/992,678.24
  6. Step 6: Final answer
    x = 1,169,286.74

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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.