Home / 455,743.31-629,102.94-407,913.62

Finding the Fourth Proportional to 455,743.31, 629,102.94 and 407,913.62

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Solution

The fourth proportional to 455,743.31, 629,102.94 and 407,913.62 is: 563,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,743.31 : 629,102.94 = 407,913.62 : x
  2. Step 2: Convert to fraction form
    455,743.31/629,102.94 = 407,913.62/x
  3. Step 3: Cross multiply
    455,743.31x = 629,102.94 × 407,913.62
  4. Step 4: Simplify right side
    455,743.31x = 256,619,654,462.53
  5. Step 5: Solve for x
    x = 256,619,654,462.53/455,743.31
  6. Step 6: Final answer
    x = 563,079.37

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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.