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Finding the Fourth Proportional to 665,227.88, 998,552.28 and 286,336.28

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Solution

The fourth proportional to 665,227.88, 998,552.28 and 286,336.28 is: 429,810.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,227.88 : 998,552.28 = 286,336.28 : x
  2. Step 2: Convert to fraction form
    665,227.88/998,552.28 = 286,336.28/x
  3. Step 3: Cross multiply
    665,227.88x = 998,552.28 × 286,336.28
  4. Step 4: Simplify right side
    665,227.88x = 285,921,745,240.72
  5. Step 5: Solve for x
    x = 285,921,745,240.72/665,227.88
  6. Step 6: Final answer
    x = 429,810.23

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1.5x scale

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.