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Finding the Fourth Proportional to 552,573.57, 762,550.31 and 310,856.25

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Solution

The fourth proportional to 552,573.57, 762,550.31 and 310,856.25 is: 428,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,573.57 : 762,550.31 = 310,856.25 : x
  2. Step 2: Convert to fraction form
    552,573.57/762,550.31 = 310,856.25/x
  3. Step 3: Cross multiply
    552,573.57x = 762,550.31 × 310,856.25
  4. Step 4: Simplify right side
    552,573.57x = 237,043,528,248.66
  5. Step 5: Solve for x
    x = 237,043,528,248.66/552,573.57
  6. Step 6: Final answer
    x = 428,980.94

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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.