Home / 911,279.86-1,367,212.27-437,999.54

Finding the Fourth Proportional to 911,279.86, 1,367,212.27 and 437,999.54

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Solution

The fourth proportional to 911,279.86, 1,367,212.27 and 437,999.54 is: 657,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,279.86 : 1,367,212.27 = 437,999.54 : x
  2. Step 2: Convert to fraction form
    911,279.86/1,367,212.27 = 437,999.54/x
  3. Step 3: Cross multiply
    911,279.86x = 1,367,212.27 × 437,999.54
  4. Step 4: Simplify right side
    911,279.86x = 598,838,345,342.36
  5. Step 5: Solve for x
    x = 598,838,345,342.36/911,279.86
  6. Step 6: Final answer
    x = 657,139.89

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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.