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Finding the Fourth Proportional to 565,813.52, 780,631.48 and 320,772.02

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Solution

The fourth proportional to 565,813.52, 780,631.48 and 320,772.02 is: 442,557.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,813.52 : 780,631.48 = 320,772.02 : x
  2. Step 2: Convert to fraction form
    565,813.52/780,631.48 = 320,772.02/x
  3. Step 3: Cross multiply
    565,813.52x = 780,631.48 × 320,772.02
  4. Step 4: Simplify right side
    565,813.52x = 250,404,731,408.66
  5. Step 5: Solve for x
    x = 250,404,731,408.66/565,813.52
  6. Step 6: Final answer
    x = 442,557.00

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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.