Home / 487,822.14-731,733.21-321,571.26

Finding the Fourth Proportional to 487,822.14, 731,733.21 and 321,571.26

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Solution

The fourth proportional to 487,822.14, 731,733.21 and 321,571.26 is: 482,356.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,822.14 : 731,733.21 = 321,571.26 : x
  2. Step 2: Convert to fraction form
    487,822.14/731,733.21 = 321,571.26/x
  3. Step 3: Cross multiply
    487,822.14x = 731,733.21 × 321,571.26
  4. Step 4: Simplify right side
    487,822.14x = 235,304,370,323.55
  5. Step 5: Solve for x
    x = 235,304,370,323.55/487,822.14
  6. Step 6: Final answer
    x = 482,356.89

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Similar ratio
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1.5x scale

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.