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Finding the Fourth Proportional to 768,632.64, 1,060,723.53 and 424,491.78

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Solution

The fourth proportional to 768,632.64, 1,060,723.53 and 424,491.78 is: 585,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,632.64 : 1,060,723.53 = 424,491.78 : x
  2. Step 2: Convert to fraction form
    768,632.64/1,060,723.53 = 424,491.78/x
  3. Step 3: Cross multiply
    768,632.64x = 1,060,723.53 × 424,491.78
  4. Step 4: Simplify right side
    768,632.64x = 450,268,419,337.58
  5. Step 5: Solve for x
    x = 450,268,419,337.58/768,632.64
  6. Step 6: Final answer
    x = 585,804.45

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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.