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Finding the Fourth Proportional to 430,600.80, 644,734.80 and 337,288.80

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Solution

The fourth proportional to 430,600.80, 644,734.80 and 337,288.80 is: 505,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,600.80 : 644,734.80 = 337,288.80 : x
  2. Step 2: Convert to fraction form
    430,600.80/644,734.80 = 337,288.80/x
  3. Step 3: Cross multiply
    430,600.80x = 644,734.80 × 337,288.80
  4. Step 4: Simplify right side
    430,600.80x = 217,461,827,010.24
  5. Step 5: Solve for x
    x = 217,461,827,010.24/430,600.80
  6. Step 6: Final answer
    x = 505,019.56

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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.