Home / 459,004.20-688,506.86-143,462.76

Finding the Fourth Proportional to 459,004.20, 688,506.86 and 143,462.76

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Solution

The fourth proportional to 459,004.20, 688,506.86 and 143,462.76 is: 215,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,004.20 : 688,506.86 = 143,462.76 : x
  2. Step 2: Convert to fraction form
    459,004.20/688,506.86 = 143,462.76/x
  3. Step 3: Cross multiply
    459,004.20x = 688,506.86 × 143,462.76
  4. Step 4: Simplify right side
    459,004.20x = 98,775,094,414.53
  5. Step 5: Solve for x
    x = 98,775,094,414.53/459,004.20
  6. Step 6: Final answer
    x = 215,194.32

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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.