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Finding the Fourth Proportional to 569,570.18, 785,998.20 and 311,447.95

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Solution

The fourth proportional to 569,570.18, 785,998.20 and 311,447.95 is: 429,793.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,570.18 : 785,998.20 = 311,447.95 : x
  2. Step 2: Convert to fraction form
    569,570.18/785,998.20 = 311,447.95/x
  3. Step 3: Cross multiply
    569,570.18x = 785,998.20 × 311,447.95
  4. Step 4: Simplify right side
    569,570.18x = 244,797,528,093.69
  5. Step 5: Solve for x
    x = 244,797,528,093.69/569,570.18
  6. Step 6: Final answer
    x = 429,793.44

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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.