Home / 1,310,128.92-1,962,044.10-747,457.56

Finding the Fourth Proportional to 1,310,128.92, 1,962,044.10 and 747,457.56

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Solution

The fourth proportional to 1,310,128.92, 1,962,044.10 and 747,457.56 is: 1,119,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,128.92 : 1,962,044.10 = 747,457.56 : x
  2. Step 2: Convert to fraction form
    1,310,128.92/1,962,044.10 = 747,457.56/x
  3. Step 3: Cross multiply
    1,310,128.92x = 1,962,044.10 × 747,457.56
  4. Step 4: Simplify right side
    1,310,128.92x = 1,466,544,695,598.40
  5. Step 5: Solve for x
    x = 1,466,544,695,598.40/1,310,128.92
  6. Step 6: Final answer
    x = 1,119,389.61

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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.