Home / 1,019,487.24-1,529,414.73-420,114.78

Finding the Fourth Proportional to 1,019,487.24, 1,529,414.73 and 420,114.78

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Solution

The fourth proportional to 1,019,487.24, 1,529,414.73 and 420,114.78 is: 630,247.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,487.24 : 1,529,414.73 = 420,114.78 : x
  2. Step 2: Convert to fraction form
    1,019,487.24/1,529,414.73 = 420,114.78/x
  3. Step 3: Cross multiply
    1,019,487.24x = 1,529,414.73 × 420,114.78
  4. Step 4: Simplify right side
    1,019,487.24x = 642,529,732,822.71
  5. Step 5: Solve for x
    x = 642,529,732,822.71/1,019,487.24
  6. Step 6: Final answer
    x = 630,247.94

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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.