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Finding the Fourth Proportional to 459,114.20, 687,116.10 and 459,114.20

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Solution

The fourth proportional to 459,114.20, 687,116.10 and 459,114.20 is: 687,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,114.20 : 687,116.10 = 459,114.20 : x
  2. Step 2: Convert to fraction form
    459,114.20/687,116.10 = 459,114.20/x
  3. Step 3: Cross multiply
    459,114.20x = 687,116.10 × 459,114.20
  4. Step 4: Simplify right side
    459,114.20x = 315,464,758,558.62
  5. Step 5: Solve for x
    x = 315,464,758,558.62/459,114.20
  6. Step 6: Final answer
    x = 687,116.10

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1.5x scale

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.