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Finding the Fourth Proportional to 453,712.76, 679,820.28 and 263,639.58

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Solution

The fourth proportional to 453,712.76, 679,820.28 and 263,639.58 is: 395,024.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,712.76 : 679,820.28 = 263,639.58 : x
  2. Step 2: Convert to fraction form
    453,712.76/679,820.28 = 263,639.58/x
  3. Step 3: Cross multiply
    453,712.76x = 679,820.28 × 263,639.58
  4. Step 4: Simplify right side
    453,712.76x = 179,227,533,094.68
  5. Step 5: Solve for x
    x = 179,227,533,094.68/453,712.76
  6. Step 6: Final answer
    x = 395,024.23

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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.