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Finding the Fourth Proportional to 724,230.40, 995,892.96 and 628,570.48

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Solution

The fourth proportional to 724,230.40, 995,892.96 and 628,570.48 is: 864,350.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,230.40 : 995,892.96 = 628,570.48 : x
  2. Step 2: Convert to fraction form
    724,230.40/995,892.96 = 628,570.48/x
  3. Step 3: Cross multiply
    724,230.40x = 995,892.96 × 628,570.48
  4. Step 4: Simplify right side
    724,230.40x = 625,988,915,895.82
  5. Step 5: Solve for x
    x = 625,988,915,895.82/724,230.40
  6. Step 6: Final answer
    x = 864,350.51

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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.