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Finding the Fourth Proportional to 640,060.74, 960,079.23 and 191,086.02

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Solution

The fourth proportional to 640,060.74, 960,079.23 and 191,086.02 is: 286,625.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,060.74 : 960,079.23 = 191,086.02 : x
  2. Step 2: Convert to fraction form
    640,060.74/960,079.23 = 191,086.02/x
  3. Step 3: Cross multiply
    640,060.74x = 960,079.23 × 191,086.02
  4. Step 4: Simplify right side
    640,060.74x = 183,457,718,945.37
  5. Step 5: Solve for x
    x = 183,457,718,945.37/640,060.74
  6. Step 6: Final answer
    x = 286,625.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.