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Finding the Fourth Proportional to 559,620.68, 772,057.28 and 344,387.07

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Solution

The fourth proportional to 559,620.68, 772,057.28 and 344,387.07 is: 475,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,620.68 : 772,057.28 = 344,387.07 : x
  2. Step 2: Convert to fraction form
    559,620.68/772,057.28 = 344,387.07/x
  3. Step 3: Cross multiply
    559,620.68x = 772,057.28 × 344,387.07
  4. Step 4: Simplify right side
    559,620.68x = 265,886,542,809.43
  5. Step 5: Solve for x
    x = 265,886,542,809.43/559,620.68
  6. Step 6: Final answer
    x = 475,119.23

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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.