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Finding the Fourth Proportional to 1,579,676.72, 2,367,611.34 and 725,569.76

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Solution

The fourth proportional to 1,579,676.72, 2,367,611.34 and 725,569.76 is: 1,087,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579,676.72 : 2,367,611.34 = 725,569.76 : x
  2. Step 2: Convert to fraction form
    1,579,676.72/2,367,611.34 = 725,569.76/x
  3. Step 3: Cross multiply
    1,579,676.72x = 2,367,611.34 × 725,569.76
  4. Step 4: Simplify right side
    1,579,676.72x = 1,717,867,191,737.08
  5. Step 5: Solve for x
    x = 1,717,867,191,737.08/1,579,676.72
  6. Step 6: Final answer
    x = 1,087,480.22

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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.