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Finding the Fourth Proportional to 569,015.23, 785,231.85 and 310,886.63

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Solution

The fourth proportional to 569,015.23, 785,231.85 and 310,886.63 is: 429,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,015.23 : 785,231.85 = 310,886.63 : x
  2. Step 2: Convert to fraction form
    569,015.23/785,231.85 = 310,886.63/x
  3. Step 3: Cross multiply
    569,015.23x = 785,231.85 × 310,886.63
  4. Step 4: Simplify right side
    569,015.23x = 244,118,088,216.38
  5. Step 5: Solve for x
    x = 244,118,088,216.38/569,015.23
  6. Step 6: Final answer
    x = 429,018.55

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Double scale
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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.