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Finding the Fourth Proportional to 768,713.18, 1,060,743.72 and 446,360.44

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Solution

The fourth proportional to 768,713.18, 1,060,743.72 and 446,360.44 is: 615,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,713.18 : 1,060,743.72 = 446,360.44 : x
  2. Step 2: Convert to fraction form
    768,713.18/1,060,743.72 = 446,360.44/x
  3. Step 3: Cross multiply
    768,713.18x = 1,060,743.72 × 446,360.44
  4. Step 4: Simplify right side
    768,713.18x = 473,474,033,586.44
  5. Step 5: Solve for x
    x = 473,474,033,586.44/768,713.18
  6. Step 6: Final answer
    x = 615,930.68

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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.