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Finding the Fourth Proportional to 726,889.11, 1,003,107 and 404,592.31

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Solution

The fourth proportional to 726,889.11, 1,003,107 and 404,592.31 is: 558,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,889.11 : 1,003,107 = 404,592.31 : x
  2. Step 2: Convert to fraction form
    726,889.11/1,003,107 = 404,592.31/x
  3. Step 3: Cross multiply
    726,889.11x = 1,003,107 × 404,592.31
  4. Step 4: Simplify right side
    726,889.11x = 405,849,373,291.64
  5. Step 5: Solve for x
    x = 405,849,373,291.64/726,889.11
  6. Step 6: Final answer
    x = 558,337.40

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1.5x scale

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.