Home / 722,125.34-1,081,468.54-417,878.28

Finding the Fourth Proportional to 722,125.34, 1,081,468.54 and 417,878.28

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Solution

The fourth proportional to 722,125.34, 1,081,468.54 and 417,878.28 is: 625,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,125.34 : 1,081,468.54 = 417,878.28 : x
  2. Step 2: Convert to fraction form
    722,125.34/1,081,468.54 = 417,878.28/x
  3. Step 3: Cross multiply
    722,125.34x = 1,081,468.54 × 417,878.28
  4. Step 4: Simplify right side
    722,125.34x = 451,922,212,324.62
  5. Step 5: Solve for x
    x = 451,922,212,324.62/722,125.34
  6. Step 6: Final answer
    x = 625,822.40

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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.