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Finding the Fourth Proportional to 659,091.86, 909,511.44 and 372,594.86

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Solution

The fourth proportional to 659,091.86, 909,511.44 and 372,594.86 is: 514,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,091.86 : 909,511.44 = 372,594.86 : x
  2. Step 2: Convert to fraction form
    659,091.86/909,511.44 = 372,594.86/x
  3. Step 3: Cross multiply
    659,091.86x = 909,511.44 × 372,594.86
  4. Step 4: Simplify right side
    659,091.86x = 338,879,287,655.20
  5. Step 5: Solve for x
    x = 338,879,287,655.20/659,091.86
  6. Step 6: Final answer
    x = 514,160.94

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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.