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Finding the Fourth Proportional to 723,999.26, 999,123.36 and 401,715.65

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Solution

The fourth proportional to 723,999.26, 999,123.36 and 401,715.65 is: 554,370.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,999.26 : 999,123.36 = 401,715.65 : x
  2. Step 2: Convert to fraction form
    723,999.26/999,123.36 = 401,715.65/x
  3. Step 3: Cross multiply
    723,999.26x = 999,123.36 × 401,715.65
  4. Step 4: Simplify right side
    723,999.26x = 401,363,490,983.96
  5. Step 5: Solve for x
    x = 401,363,490,983.96/723,999.26
  6. Step 6: Final answer
    x = 554,370.03

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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.