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Finding the Fourth Proportional to 768,451.74, 1,060,526.80 and 424,321.86

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Solution

The fourth proportional to 768,451.74, 1,060,526.80 and 424,321.86 is: 585,599.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,451.74 : 1,060,526.80 = 424,321.86 : x
  2. Step 2: Convert to fraction form
    768,451.74/1,060,526.80 = 424,321.86/x
  3. Step 3: Cross multiply
    768,451.74x = 1,060,526.80 × 424,321.86
  4. Step 4: Simplify right side
    768,451.74x = 450,004,704,355.85
  5. Step 5: Solve for x
    x = 450,004,704,355.85/768,451.74
  6. Step 6: Final answer
    x = 585,599.17

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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.