Home / 768,164.72-1,060,566.64-687,453.48

Finding the Fourth Proportional to 768,164.72, 1,060,566.64 and 687,453.48

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Solution

The fourth proportional to 768,164.72, 1,060,566.64 and 687,453.48 is: 949,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,164.72 : 1,060,566.64 = 687,453.48 : x
  2. Step 2: Convert to fraction form
    768,164.72/1,060,566.64 = 687,453.48/x
  3. Step 3: Cross multiply
    768,164.72x = 1,060,566.64 × 687,453.48
  4. Step 4: Simplify right side
    768,164.72x = 729,090,227,439.91
  5. Step 5: Solve for x
    x = 729,090,227,439.91/768,164.72
  6. Step 6: Final answer
    x = 949,132.66

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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.