Home / 758,868-1,138,346.54-285,557.44

Finding the Fourth Proportional to 758,868, 1,138,346.54 and 285,557.44

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Solution

The fourth proportional to 758,868, 1,138,346.54 and 285,557.44 is: 428,352.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,868 : 1,138,346.54 = 285,557.44 : x
  2. Step 2: Convert to fraction form
    758,868/1,138,346.54 = 285,557.44/x
  3. Step 3: Cross multiply
    758,868x = 1,138,346.54 × 285,557.44
  4. Step 4: Simplify right side
    758,868x = 325,063,323,795.26
  5. Step 5: Solve for x
    x = 325,063,323,795.26/758,868
  6. Step 6: Final answer
    x = 428,352.92

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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.