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Finding the Fourth Proportional to 569,014.97, 785,231.49 and 310,886.37

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Solution

The fourth proportional to 569,014.97, 785,231.49 and 310,886.37 is: 429,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,014.97 : 785,231.49 = 310,886.37 : x
  2. Step 2: Convert to fraction form
    569,014.97/785,231.49 = 310,886.37/x
  3. Step 3: Cross multiply
    569,014.97x = 785,231.49 × 310,886.37
  4. Step 4: Simplify right side
    569,014.97x = 244,117,771,646.23
  5. Step 5: Solve for x
    x = 244,117,771,646.23/569,014.97
  6. Step 6: Final answer
    x = 429,018.19

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Double scale
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Similar ratio
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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.