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Finding the Fourth Proportional to 565,187.46, 779,967.55 and 307,069.52

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Solution

The fourth proportional to 565,187.46, 779,967.55 and 307,069.52 is: 423,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,187.46 : 779,967.55 = 307,069.52 : x
  2. Step 2: Convert to fraction form
    565,187.46/779,967.55 = 307,069.52/x
  3. Step 3: Cross multiply
    565,187.46x = 779,967.55 × 307,069.52
  4. Step 4: Simplify right side
    565,187.46x = 239,504,262,376.32
  5. Step 5: Solve for x
    x = 239,504,262,376.32/565,187.46
  6. Step 6: Final answer
    x = 423,760.75

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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.