Home / 455,666.22-628,816.86-251,731.17

Finding the Fourth Proportional to 455,666.22, 628,816.86 and 251,731.17

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Solution

The fourth proportional to 455,666.22, 628,816.86 and 251,731.17 is: 347,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,666.22 : 628,816.86 = 251,731.17 : x
  2. Step 2: Convert to fraction form
    455,666.22/628,816.86 = 251,731.17/x
  3. Step 3: Cross multiply
    455,666.22x = 628,816.86 × 251,731.17
  4. Step 4: Simplify right side
    455,666.22x = 158,292,803,883.53
  5. Step 5: Solve for x
    x = 158,292,803,883.53/455,666.22
  6. Step 6: Final answer
    x = 347,387.62

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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.