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Finding the Fourth Proportional to 519,479.53, 716,874.77 and 290,040.33

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Solution

The fourth proportional to 519,479.53, 716,874.77 and 290,040.33 is: 400,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,479.53 : 716,874.77 = 290,040.33 : x
  2. Step 2: Convert to fraction form
    519,479.53/716,874.77 = 290,040.33/x
  3. Step 3: Cross multiply
    519,479.53x = 716,874.77 × 290,040.33
  4. Step 4: Simplify right side
    519,479.53x = 207,922,598,272.86
  5. Step 5: Solve for x
    x = 207,922,598,272.86/519,479.53
  6. Step 6: Final answer
    x = 400,251.77

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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.