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Finding the Fourth Proportional to 519,167.42, 716,491.45 and 286,639.93

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Solution

The fourth proportional to 519,167.42, 716,491.45 and 286,639.93 is: 395,585.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,167.42 : 716,491.45 = 286,639.93 : x
  2. Step 2: Convert to fraction form
    519,167.42/716,491.45 = 286,639.93/x
  3. Step 3: Cross multiply
    519,167.42x = 716,491.45 × 286,639.93
  4. Step 4: Simplify right side
    519,167.42x = 205,375,059,073.60
  5. Step 5: Solve for x
    x = 205,375,059,073.60/519,167.42
  6. Step 6: Final answer
    x = 395,585.41

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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.