Home / 519,971.94-717,566.02-305,115.58

Finding the Fourth Proportional to 519,971.94, 717,566.02 and 305,115.58

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Solution

The fourth proportional to 519,971.94, 717,566.02 and 305,115.58 is: 421,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,971.94 : 717,566.02 = 305,115.58 : x
  2. Step 2: Convert to fraction form
    519,971.94/717,566.02 = 305,115.58/x
  3. Step 3: Cross multiply
    519,971.94x = 717,566.02 × 305,115.58
  4. Step 4: Simplify right side
    519,971.94x = 218,940,572,380.59
  5. Step 5: Solve for x
    x = 218,940,572,380.59/519,971.94
  6. Step 6: Final answer
    x = 421,062.28

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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.