Home / 459,964.59-689,713.61-210,432.75

Finding the Fourth Proportional to 459,964.59, 689,713.61 and 210,432.75

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Solution

The fourth proportional to 459,964.59, 689,713.61 and 210,432.75 is: 315,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,964.59 : 689,713.61 = 210,432.75 : x
  2. Step 2: Convert to fraction form
    459,964.59/689,713.61 = 210,432.75/x
  3. Step 3: Cross multiply
    459,964.59x = 689,713.61 × 210,432.75
  4. Step 4: Simplify right side
    459,964.59x = 145,138,330,612.56
  5. Step 5: Solve for x
    x = 145,138,330,612.56/459,964.59
  6. Step 6: Final answer
    x = 315,542.40

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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.