Home / 1,320,508.36-1,980,893.76-479,125.72

Finding the Fourth Proportional to 1,320,508.36, 1,980,893.76 and 479,125.72

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Solution

The fourth proportional to 1,320,508.36, 1,980,893.76 and 479,125.72 is: 718,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,508.36 : 1,980,893.76 = 479,125.72 : x
  2. Step 2: Convert to fraction form
    1,320,508.36/1,980,893.76 = 479,125.72/x
  3. Step 3: Cross multiply
    1,320,508.36x = 1,980,893.76 × 479,125.72
  4. Step 4: Simplify right side
    1,320,508.36x = 949,097,149,003.51
  5. Step 5: Solve for x
    x = 949,097,149,003.51/1,320,508.36
  6. Step 6: Final answer
    x = 718,736.19

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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.