Home / 420,504.20-580,482.42-284,735.24

Finding the Fourth Proportional to 420,504.20, 580,482.42 and 284,735.24

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Solution

The fourth proportional to 420,504.20, 580,482.42 and 284,735.24 is: 393,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,504.20 : 580,482.42 = 284,735.24 : x
  2. Step 2: Convert to fraction form
    420,504.20/580,482.42 = 284,735.24/x
  3. Step 3: Cross multiply
    420,504.20x = 580,482.42 × 284,735.24
  4. Step 4: Simplify right side
    420,504.20x = 165,283,801,174.48
  5. Step 5: Solve for x
    x = 165,283,801,174.48/420,504.20
  6. Step 6: Final answer
    x = 393,061.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.