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Finding the Fourth Proportional to 680,256.72, 940,048.96 and 510,195.60

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Solution

The fourth proportional to 680,256.72, 940,048.96 and 510,195.60 is: 705,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,256.72 : 940,048.96 = 510,195.60 : x
  2. Step 2: Convert to fraction form
    680,256.72/940,048.96 = 510,195.60/x
  3. Step 3: Cross multiply
    680,256.72x = 940,048.96 × 510,195.60
  4. Step 4: Simplify right side
    680,256.72x = 479,608,843,176.58
  5. Step 5: Solve for x
    x = 479,608,843,176.58/680,256.72
  6. Step 6: Final answer
    x = 705,040.95

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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.