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Finding the Fourth Proportional to 459,502.20, 687,698.10 and 459,502.20

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Solution

The fourth proportional to 459,502.20, 687,698.10 and 459,502.20 is: 687,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,502.20 : 687,698.10 = 459,502.20 : x
  2. Step 2: Convert to fraction form
    459,502.20/687,698.10 = 459,502.20/x
  3. Step 3: Cross multiply
    459,502.20x = 687,698.10 × 459,502.20
  4. Step 4: Simplify right side
    459,502.20x = 315,998,789,885.82
  5. Step 5: Solve for x
    x = 315,998,789,885.82/459,502.20
  6. Step 6: Final answer
    x = 687,698.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.