Home / 892,420.50-1,231,540.29-490,012.50

Finding the Fourth Proportional to 892,420.50, 1,231,540.29 and 490,012.50

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Solution

The fourth proportional to 892,420.50, 1,231,540.29 and 490,012.50 is: 676,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,420.50 : 1,231,540.29 = 490,012.50 : x
  2. Step 2: Convert to fraction form
    892,420.50/1,231,540.29 = 490,012.50/x
  3. Step 3: Cross multiply
    892,420.50x = 1,231,540.29 × 490,012.50
  4. Step 4: Simplify right side
    892,420.50x = 603,470,136,353.63
  5. Step 5: Solve for x
    x = 603,470,136,353.63/892,420.50
  6. Step 6: Final answer
    x = 676,217.25

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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.