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Finding the Fourth Proportional to 498,360.90, 687,498.93 and 362,183.70

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Solution

The fourth proportional to 498,360.90, 687,498.93 and 362,183.70 is: 499,639.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,360.90 : 687,498.93 = 362,183.70 : x
  2. Step 2: Convert to fraction form
    498,360.90/687,498.93 = 362,183.70/x
  3. Step 3: Cross multiply
    498,360.90x = 687,498.93 × 362,183.70
  4. Step 4: Simplify right side
    498,360.90x = 249,000,906,213.44
  5. Step 5: Solve for x
    x = 249,000,906,213.44/498,360.90
  6. Step 6: Final answer
    x = 499,639.73

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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.