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Finding the Fourth Proportional to 696,457.04, 961,329.48 and 394,851.92

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Solution

The fourth proportional to 696,457.04, 961,329.48 and 394,851.92 is: 545,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,457.04 : 961,329.48 = 394,851.92 : x
  2. Step 2: Convert to fraction form
    696,457.04/961,329.48 = 394,851.92/x
  3. Step 3: Cross multiply
    696,457.04x = 961,329.48 × 394,851.92
  4. Step 4: Simplify right side
    696,457.04x = 379,582,790,930.60
  5. Step 5: Solve for x
    x = 379,582,790,930.60/696,457.04
  6. Step 6: Final answer
    x = 545,019.68

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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.