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Finding the Fourth Proportional to 525,232.32, 724,810.76 and 321,268.26

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Solution

The fourth proportional to 525,232.32, 724,810.76 and 321,268.26 is: 443,344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,232.32 : 724,810.76 = 321,268.26 : x
  2. Step 2: Convert to fraction form
    525,232.32/724,810.76 = 321,268.26/x
  3. Step 3: Cross multiply
    525,232.32x = 724,810.76 × 321,268.26
  4. Step 4: Simplify right side
    525,232.32x = 232,858,690,088.14
  5. Step 5: Solve for x
    x = 232,858,690,088.14/525,232.32
  6. Step 6: Final answer
    x = 443,344.18

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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.