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Finding the Fourth Proportional to 768,329.42, 1,060,266.75 and 424,157.96

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Solution

The fourth proportional to 768,329.42, 1,060,266.75 and 424,157.96 is: 585,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,329.42 : 1,060,266.75 = 424,157.96 : x
  2. Step 2: Convert to fraction form
    768,329.42/1,060,266.75 = 424,157.96/x
  3. Step 3: Cross multiply
    768,329.42x = 1,060,266.75 × 424,157.96
  4. Step 4: Simplify right side
    768,329.42x = 449,720,576,434.50
  5. Step 5: Solve for x
    x = 449,720,576,434.50/768,329.42
  6. Step 6: Final answer
    x = 585,322.61

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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.