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Finding the Fourth Proportional to 519,277.48, 716,602.50 and 280,813.48

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Solution

The fourth proportional to 519,277.48, 716,602.50 and 280,813.48 is: 387,522.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,277.48 : 716,602.50 = 280,813.48 : x
  2. Step 2: Convert to fraction form
    519,277.48/716,602.50 = 280,813.48/x
  3. Step 3: Cross multiply
    519,277.48x = 716,602.50 × 280,813.48
  4. Step 4: Simplify right side
    519,277.48x = 201,231,641,801.70
  5. Step 5: Solve for x
    x = 201,231,641,801.70/519,277.48
  6. Step 6: Final answer
    x = 387,522.37

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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.