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Finding the Fourth Proportional to 549,356.96, 757,781.52 and 322,816.16

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Solution

The fourth proportional to 549,356.96, 757,781.52 and 322,816.16 is: 445,291.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,356.96 : 757,781.52 = 322,816.16 : x
  2. Step 2: Convert to fraction form
    549,356.96/757,781.52 = 322,816.16/x
  3. Step 3: Cross multiply
    549,356.96x = 757,781.52 × 322,816.16
  4. Step 4: Simplify right side
    549,356.96x = 244,624,120,405.36
  5. Step 5: Solve for x
    x = 244,624,120,405.36/549,356.96
  6. Step 6: Final answer
    x = 445,291.75

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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.