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Finding the Fourth Proportional to 651,125.76, 897,868.80 and 481,712.64

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Solution

The fourth proportional to 651,125.76, 897,868.80 and 481,712.64 is: 664,256.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,125.76 : 897,868.80 = 481,712.64 : x
  2. Step 2: Convert to fraction form
    651,125.76/897,868.80 = 481,712.64/x
  3. Step 3: Cross multiply
    651,125.76x = 897,868.80 × 481,712.64
  4. Step 4: Simplify right side
    651,125.76x = 432,514,750,021.63
  5. Step 5: Solve for x
    x = 432,514,750,021.63/651,125.76
  6. Step 6: Final answer
    x = 664,256.86

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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.