Home / 771,468.48-1,157,386.14-321,939.54

Finding the Fourth Proportional to 771,468.48, 1,157,386.14 and 321,939.54

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Solution

The fourth proportional to 771,468.48, 1,157,386.14 and 321,939.54 is: 482,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,468.48 : 1,157,386.14 = 321,939.54 : x
  2. Step 2: Convert to fraction form
    771,468.48/1,157,386.14 = 321,939.54/x
  3. Step 3: Cross multiply
    771,468.48x = 1,157,386.14 × 321,939.54
  4. Step 4: Simplify right side
    771,468.48x = 372,608,361,513.98
  5. Step 5: Solve for x
    x = 372,608,361,513.98/771,468.48
  6. Step 6: Final answer
    x = 482,985.85

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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.