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Finding the Fourth Proportional to 724,018.20, 995,602.13 and 628,358.82

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Solution

The fourth proportional to 724,018.20, 995,602.13 and 628,358.82 is: 864,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,018.20 : 995,602.13 = 628,358.82 : x
  2. Step 2: Convert to fraction form
    724,018.20/995,602.13 = 628,358.82/x
  3. Step 3: Cross multiply
    724,018.20x = 995,602.13 × 628,358.82
  4. Step 4: Simplify right side
    724,018.20x = 625,595,378,611.85
  5. Step 5: Solve for x
    x = 625,595,378,611.85/724,018.20
  6. Step 6: Final answer
    x = 864,060.30

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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.