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Finding the Fourth Proportional to 538,449.36, 801,696.16 and 530,909.16

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Solution

The fourth proportional to 538,449.36, 801,696.16 and 530,909.16 is: 790,469.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,449.36 : 801,696.16 = 530,909.16 : x
  2. Step 2: Convert to fraction form
    538,449.36/801,696.16 = 530,909.16/x
  3. Step 3: Cross multiply
    538,449.36x = 801,696.16 × 530,909.16
  4. Step 4: Simplify right side
    538,449.36x = 425,627,828,217.80
  5. Step 5: Solve for x
    x = 425,627,828,217.80/538,449.36
  6. Step 6: Final answer
    x = 790,469.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.