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Finding the Fourth Proportional to 519,267.71, 716,625.43 and 289,870.04

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Solution

The fourth proportional to 519,267.71, 716,625.43 and 289,870.04 is: 400,040.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,267.71 : 716,625.43 = 289,870.04 : x
  2. Step 2: Convert to fraction form
    519,267.71/716,625.43 = 289,870.04/x
  3. Step 3: Cross multiply
    519,267.71x = 716,625.43 × 289,870.04
  4. Step 4: Simplify right side
    519,267.71x = 207,728,243,126.01
  5. Step 5: Solve for x
    x = 207,728,243,126.01/519,267.71
  6. Step 6: Final answer
    x = 400,040.75

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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.