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Finding the Fourth Proportional to 1,040,664.47, 1,560,664.47 and 330,526.40

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Solution

The fourth proportional to 1,040,664.47, 1,560,664.47 and 330,526.40 is: 495,684.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,664.47 : 1,560,664.47 = 330,526.40 : x
  2. Step 2: Convert to fraction form
    1,040,664.47/1,560,664.47 = 330,526.40/x
  3. Step 3: Cross multiply
    1,040,664.47x = 1,560,664.47 × 330,526.40
  4. Step 4: Simplify right side
    1,040,664.47x = 515,840,808,877.01
  5. Step 5: Solve for x
    x = 515,840,808,877.01/1,040,664.47
  6. Step 6: Final answer
    x = 495,684.08

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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.