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Finding the Fourth Proportional to 531,990.13, 734,255.64 and 325,293.86

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Solution

The fourth proportional to 531,990.13, 734,255.64 and 325,293.86 is: 448,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,990.13 : 734,255.64 = 325,293.86 : x
  2. Step 2: Convert to fraction form
    531,990.13/734,255.64 = 325,293.86/x
  3. Step 3: Cross multiply
    531,990.13x = 734,255.64 × 325,293.86
  4. Step 4: Simplify right side
    531,990.13x = 238,848,851,362.37
  5. Step 5: Solve for x
    x = 238,848,851,362.37/531,990.13
  6. Step 6: Final answer
    x = 448,972.34

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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.