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Finding the Fourth Proportional to 552,427.87, 762,342.93 and 310,710.34

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Solution

The fourth proportional to 552,427.87, 762,342.93 and 310,710.34 is: 428,776.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,427.87 : 762,342.93 = 310,710.34 : x
  2. Step 2: Convert to fraction form
    552,427.87/762,342.93 = 310,710.34/x
  3. Step 3: Cross multiply
    552,427.87x = 762,342.93 × 310,710.34
  4. Step 4: Simplify right side
    552,427.87x = 236,867,830,976.90
  5. Step 5: Solve for x
    x = 236,867,830,976.90/552,427.87
  6. Step 6: Final answer
    x = 428,776.03

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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.