Home / 455,329.79-628,356.04-251,381.10

Finding the Fourth Proportional to 455,329.79, 628,356.04 and 251,381.10

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Solution

The fourth proportional to 455,329.79, 628,356.04 and 251,381.10 is: 346,906.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,329.79 : 628,356.04 = 251,381.10 : x
  2. Step 2: Convert to fraction form
    455,329.79/628,356.04 = 251,381.10/x
  3. Step 3: Cross multiply
    455,329.79x = 628,356.04 × 251,381.10
  4. Step 4: Simplify right side
    455,329.79x = 157,956,832,526.84
  5. Step 5: Solve for x
    x = 157,956,832,526.84/455,329.79
  6. Step 6: Final answer
    x = 346,906.43

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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.