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Finding the Fourth Proportional to 528,788.20, 729,457.32 and 337,600.60

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Solution

The fourth proportional to 528,788.20, 729,457.32 and 337,600.60 is: 465,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,788.20 : 729,457.32 = 337,600.60 : x
  2. Step 2: Convert to fraction form
    528,788.20/729,457.32 = 337,600.60/x
  3. Step 3: Cross multiply
    528,788.20x = 729,457.32 × 337,600.60
  4. Step 4: Simplify right side
    528,788.20x = 246,265,228,906.39
  5. Step 5: Solve for x
    x = 246,265,228,906.39/528,788.20
  6. Step 6: Final answer
    x = 465,716.20

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1.5x scale

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.