Home / 1,331,751.88-1,997,826.72-490,239.64

Finding the Fourth Proportional to 1,331,751.88, 1,997,826.72 and 490,239.64

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Solution

The fourth proportional to 1,331,751.88, 1,997,826.72 and 490,239.64 is: 735,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,751.88 : 1,997,826.72 = 490,239.64 : x
  2. Step 2: Convert to fraction form
    1,331,751.88/1,997,826.72 = 490,239.64/x
  3. Step 3: Cross multiply
    1,331,751.88x = 1,997,826.72 × 490,239.64
  4. Step 4: Simplify right side
    1,331,751.88x = 979,413,851,995.18
  5. Step 5: Solve for x
    x = 979,413,851,995.18/1,331,751.88
  6. Step 6: Final answer
    x = 735,432.68

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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.