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Finding the Fourth Proportional to 768,625.67, 1,060,622.88 and 446,272.81

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Solution

The fourth proportional to 768,625.67, 1,060,622.88 and 446,272.81 is: 615,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,625.67 : 1,060,622.88 = 446,272.81 : x
  2. Step 2: Convert to fraction form
    768,625.67/1,060,622.88 = 446,272.81/x
  3. Step 3: Cross multiply
    768,625.67x = 1,060,622.88 × 446,272.81
  4. Step 4: Simplify right side
    768,625.67x = 473,327,148,682.81
  5. Step 5: Solve for x
    x = 473,327,148,682.81/768,625.67
  6. Step 6: Final answer
    x = 615,809.71

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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.