Home / 567,619.56-783,320.26-312,979.88

Finding the Fourth Proportional to 567,619.56, 783,320.26 and 312,979.88

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Solution

The fourth proportional to 567,619.56, 783,320.26 and 312,979.88 is: 431,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,619.56 : 783,320.26 = 312,979.88 : x
  2. Step 2: Convert to fraction form
    567,619.56/783,320.26 = 312,979.88/x
  3. Step 3: Cross multiply
    567,619.56x = 783,320.26 × 312,979.88
  4. Step 4: Simplify right side
    567,619.56x = 245,163,480,976.37
  5. Step 5: Solve for x
    x = 245,163,480,976.37/567,619.56
  6. Step 6: Final answer
    x = 431,915.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.