Home / 717,422.52-1,076,189.36-290,755.22

Finding the Fourth Proportional to 717,422.52, 1,076,189.36 and 290,755.22

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Solution

The fourth proportional to 717,422.52, 1,076,189.36 and 290,755.22 is: 436,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,422.52 : 1,076,189.36 = 290,755.22 : x
  2. Step 2: Convert to fraction form
    717,422.52/1,076,189.36 = 290,755.22/x
  3. Step 3: Cross multiply
    717,422.52x = 1,076,189.36 × 290,755.22
  4. Step 4: Simplify right side
    717,422.52x = 312,907,667,293.74
  5. Step 5: Solve for x
    x = 312,907,667,293.74/717,422.52
  6. Step 6: Final answer
    x = 436,155.35

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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.