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Finding the Fourth Proportional to 569,226.56, 785,548.94 and 311,117.90

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Solution

The fourth proportional to 569,226.56, 785,548.94 and 311,117.90 is: 429,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,226.56 : 785,548.94 = 311,117.90 : x
  2. Step 2: Convert to fraction form
    569,226.56/785,548.94 = 311,117.90/x
  3. Step 3: Cross multiply
    569,226.56x = 785,548.94 × 311,117.90
  4. Step 4: Simplify right side
    569,226.56x = 244,398,331,076.69
  5. Step 5: Solve for x
    x = 244,398,331,076.69/569,226.56
  6. Step 6: Final answer
    x = 429,351.60

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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.