Home / 456,308.22-629,046.63-312,841.02

Finding the Fourth Proportional to 456,308.22, 629,046.63 and 312,841.02

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Solution

The fourth proportional to 456,308.22, 629,046.63 and 312,841.02 is: 431,269.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,308.22 : 629,046.63 = 312,841.02 : x
  2. Step 2: Convert to fraction form
    456,308.22/629,046.63 = 312,841.02/x
  3. Step 3: Cross multiply
    456,308.22x = 629,046.63 × 312,841.02
  4. Step 4: Simplify right side
    456,308.22x = 196,791,589,356.76
  5. Step 5: Solve for x
    x = 196,791,589,356.76/456,308.22
  6. Step 6: Final answer
    x = 431,269.00

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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.