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Finding the Fourth Proportional to 539,322.20, 808,983.30 and 528,824.60

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Solution

The fourth proportional to 539,322.20, 808,983.30 and 528,824.60 is: 793,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,322.20 : 808,983.30 = 528,824.60 : x
  2. Step 2: Convert to fraction form
    539,322.20/808,983.30 = 528,824.60/x
  3. Step 3: Cross multiply
    539,322.20x = 808,983.30 × 528,824.60
  4. Step 4: Simplify right side
    539,322.20x = 427,810,270,029.18
  5. Step 5: Solve for x
    x = 427,810,270,029.18/539,322.20
  6. Step 6: Final answer
    x = 793,236.90

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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.