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Finding the Fourth Proportional to 565,587.33, 780,515.63 and 307,464.80

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Solution

The fourth proportional to 565,587.33, 780,515.63 and 307,464.80 is: 424,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,587.33 : 780,515.63 = 307,464.80 : x
  2. Step 2: Convert to fraction form
    565,587.33/780,515.63 = 307,464.80/x
  3. Step 3: Cross multiply
    565,587.33x = 780,515.63 × 307,464.80
  4. Step 4: Simplify right side
    565,587.33x = 239,981,076,634.92
  5. Step 5: Solve for x
    x = 239,981,076,634.92/565,587.33
  6. Step 6: Final answer
    x = 424,304.19

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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.