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Finding the Fourth Proportional to 768,994.74, 1,061,190.72 and 424,825.20

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Solution

The fourth proportional to 768,994.74, 1,061,190.72 and 424,825.20 is: 586,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,994.74 : 1,061,190.72 = 424,825.20 : x
  2. Step 2: Convert to fraction form
    768,994.74/1,061,190.72 = 424,825.20/x
  3. Step 3: Cross multiply
    768,994.74x = 1,061,190.72 × 424,825.20
  4. Step 4: Simplify right side
    768,994.74x = 450,820,559,862.14
  5. Step 5: Solve for x
    x = 450,820,559,862.14/768,994.74
  6. Step 6: Final answer
    x = 586,246.61

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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.