Home / 612,999.50-845,943.54-341,078.86

Finding the Fourth Proportional to 612,999.50, 845,943.54 and 341,078.86

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Solution

The fourth proportional to 612,999.50, 845,943.54 and 341,078.86 is: 470,691.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,999.50 : 845,943.54 = 341,078.86 : x
  2. Step 2: Convert to fraction form
    612,999.50/845,943.54 = 341,078.86/x
  3. Step 3: Cross multiply
    612,999.50x = 845,943.54 × 341,078.86
  4. Step 4: Simplify right side
    612,999.50x = 288,533,458,247.56
  5. Step 5: Solve for x
    x = 288,533,458,247.56/612,999.50
  6. Step 6: Final answer
    x = 470,691.18

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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.