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Finding the Fourth Proportional to 518,968.36, 716,176.02 and 280,504.36

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Solution

The fourth proportional to 518,968.36, 716,176.02 and 280,504.36 is: 387,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,968.36 : 716,176.02 = 280,504.36 : x
  2. Step 2: Convert to fraction form
    518,968.36/716,176.02 = 280,504.36/x
  3. Step 3: Cross multiply
    518,968.36x = 716,176.02 × 280,504.36
  4. Step 4: Simplify right side
    518,968.36x = 200,890,496,137.45
  5. Step 5: Solve for x
    x = 200,890,496,137.45/518,968.36
  6. Step 6: Final answer
    x = 387,095.85

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1.5x scale

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.