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Finding the Fourth Proportional to 569,335.95, 785,700.33 and 311,227.17

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Solution

The fourth proportional to 569,335.95, 785,700.33 and 311,227.17 is: 429,502.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,335.95 : 785,700.33 = 311,227.17 : x
  2. Step 2: Convert to fraction form
    569,335.95/785,700.33 = 311,227.17/x
  3. Step 3: Cross multiply
    569,335.95x = 785,700.33 × 311,227.17
  4. Step 4: Simplify right side
    569,335.95x = 244,531,290,173.97
  5. Step 5: Solve for x
    x = 244,531,290,173.97/569,335.95
  6. Step 6: Final answer
    x = 429,502.63

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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.