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Finding the Fourth Proportional to 768,361.65, 1,060,697.84 and 446,009.69

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Solution

The fourth proportional to 768,361.65, 1,060,697.84 and 446,009.69 is: 615,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,361.65 : 1,060,697.84 = 446,009.69 : x
  2. Step 2: Convert to fraction form
    768,361.65/1,060,697.84 = 446,009.69/x
  3. Step 3: Cross multiply
    768,361.65x = 1,060,697.84 × 446,009.69
  4. Step 4: Simplify right side
    768,361.65x = 473,081,515,223.77
  5. Step 5: Solve for x
    x = 473,081,515,223.77/768,361.65
  6. Step 6: Final answer
    x = 615,701.63

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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.