Home / 1,320,115.98-1,979,856.81-609,461.31

Finding the Fourth Proportional to 1,320,115.98, 1,979,856.81 and 609,461.31

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Solution

The fourth proportional to 1,320,115.98, 1,979,856.81 and 609,461.31 is: 914,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,115.98 : 1,979,856.81 = 609,461.31 : x
  2. Step 2: Convert to fraction form
    1,320,115.98/1,979,856.81 = 609,461.31/x
  3. Step 3: Cross multiply
    1,320,115.98x = 1,979,856.81 × 609,461.31
  4. Step 4: Simplify right side
    1,320,115.98x = 1,206,646,125,035.02
  5. Step 5: Solve for x
    x = 1,206,646,125,035.02/1,320,115.98
  6. Step 6: Final answer
    x = 914,045.54

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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.