Home / 729,457.43-1,006,819.22-427,748.63

Finding the Fourth Proportional to 729,457.43, 1,006,819.22 and 427,748.63

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Solution

The fourth proportional to 729,457.43, 1,006,819.22 and 427,748.63 is: 590,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,457.43 : 1,006,819.22 = 427,748.63 : x
  2. Step 2: Convert to fraction form
    729,457.43/1,006,819.22 = 427,748.63/x
  3. Step 3: Cross multiply
    729,457.43x = 1,006,819.22 × 427,748.63
  4. Step 4: Simplify right side
    729,457.43x = 430,665,542,012.67
  5. Step 5: Solve for x
    x = 430,665,542,012.67/729,457.43
  6. Step 6: Final answer
    x = 590,391.60

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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.