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Finding the Fourth Proportional to 768,635.64, 1,060,727.68 and 424,494.78

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Solution

The fourth proportional to 768,635.64, 1,060,727.68 and 424,494.78 is: 585,808.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,635.64 : 1,060,727.68 = 424,494.78 : x
  2. Step 2: Convert to fraction form
    768,635.64/1,060,727.68 = 424,494.78/x
  3. Step 3: Cross multiply
    768,635.64x = 1,060,727.68 × 424,494.78
  4. Step 4: Simplify right side
    768,635.64x = 450,273,363,161.51
  5. Step 5: Solve for x
    x = 450,273,363,161.51/768,635.64
  6. Step 6: Final answer
    x = 585,808.59

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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.