Home / 459,037.80-688,082.85-206,439.30

Finding the Fourth Proportional to 459,037.80, 688,082.85 and 206,439.30

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Solution

The fourth proportional to 459,037.80, 688,082.85 and 206,439.30 is: 309,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,037.80 : 688,082.85 = 206,439.30 : x
  2. Step 2: Convert to fraction form
    459,037.80/688,082.85 = 206,439.30/x
  3. Step 3: Cross multiply
    459,037.80x = 688,082.85 × 206,439.30
  4. Step 4: Simplify right side
    459,037.80x = 142,047,341,896.01
  5. Step 5: Solve for x
    x = 142,047,341,896.01/459,037.80
  6. Step 6: Final answer
    x = 309,445.85

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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.