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Finding the Fourth Proportional to 519,494.35, 716,895.20 and 290,055.17

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Solution

The fourth proportional to 519,494.35, 716,895.20 and 290,055.17 is: 400,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,494.35 : 716,895.20 = 290,055.17 : x
  2. Step 2: Convert to fraction form
    519,494.35/716,895.20 = 290,055.17/x
  3. Step 3: Cross multiply
    519,494.35x = 716,895.20 × 290,055.17
  4. Step 4: Simplify right side
    519,494.35x = 207,939,157,305.64
  5. Step 5: Solve for x
    x = 207,939,157,305.64/519,494.35
  6. Step 6: Final answer
    x = 400,272.22

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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.