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Finding the Fourth Proportional to 565,679.44, 780,525.45 and 317,329.36

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Solution

The fourth proportional to 565,679.44, 780,525.45 and 317,329.36 is: 437,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,679.44 : 780,525.45 = 317,329.36 : x
  2. Step 2: Convert to fraction form
    565,679.44/780,525.45 = 317,329.36/x
  3. Step 3: Cross multiply
    565,679.44x = 780,525.45 × 317,329.36
  4. Step 4: Simplify right side
    565,679.44x = 247,683,639,560.90
  5. Step 5: Solve for x
    x = 247,683,639,560.90/565,679.44
  6. Step 6: Final answer
    x = 437,851.59

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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.