Home / 723,618.46-998,666.43-401,391.41

Finding the Fourth Proportional to 723,618.46, 998,666.43 and 401,391.41

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Solution

The fourth proportional to 723,618.46, 998,666.43 and 401,391.41 is: 553,960.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,618.46 : 998,666.43 = 401,391.41 : x
  2. Step 2: Convert to fraction form
    723,618.46/998,666.43 = 401,391.41/x
  3. Step 3: Cross multiply
    723,618.46x = 998,666.43 × 401,391.41
  4. Step 4: Simplify right side
    723,618.46x = 400,856,126,457.37
  5. Step 5: Solve for x
    x = 400,856,126,457.37/723,618.46
  6. Step 6: Final answer
    x = 553,960.62

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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.