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Finding the Fourth Proportional to 419,632.17, 579,092.45 and 228,645.57

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Solution

The fourth proportional to 419,632.17, 579,092.45 and 228,645.57 is: 315,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,632.17 : 579,092.45 = 228,645.57 : x
  2. Step 2: Convert to fraction form
    419,632.17/579,092.45 = 228,645.57/x
  3. Step 3: Cross multiply
    419,632.17x = 579,092.45 × 228,645.57
  4. Step 4: Simplify right side
    419,632.17x = 132,406,923,312.95
  5. Step 5: Solve for x
    x = 132,406,923,312.95/419,632.17
  6. Step 6: Final answer
    x = 315,530.92

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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.