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Finding the Fourth Proportional to 768,074.68, 1,059,773.34 and 445,597.96

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Solution

The fourth proportional to 768,074.68, 1,059,773.34 and 445,597.96 is: 614,826.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,074.68 : 1,059,773.34 = 445,597.96 : x
  2. Step 2: Convert to fraction form
    768,074.68/1,059,773.34 = 445,597.96/x
  3. Step 3: Cross multiply
    768,074.68x = 1,059,773.34 × 445,597.96
  4. Step 4: Simplify right side
    768,074.68x = 472,232,838,366.39
  5. Step 5: Solve for x
    x = 472,232,838,366.39/768,074.68
  6. Step 6: Final answer
    x = 614,826.72

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1.5x scale

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.