Home / 1,309,606.89-1,807,244.37-728,820.30

Finding the Fourth Proportional to 1,309,606.89, 1,807,244.37 and 728,820.30

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Solution

The fourth proportional to 1,309,606.89, 1,807,244.37 and 728,820.30 is: 1,005,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,606.89 : 1,807,244.37 = 728,820.30 : x
  2. Step 2: Convert to fraction form
    1,309,606.89/1,807,244.37 = 728,820.30/x
  3. Step 3: Cross multiply
    1,309,606.89x = 1,807,244.37 × 728,820.30
  4. Step 4: Simplify right side
    1,309,606.89x = 1,317,156,383,916.71
  5. Step 5: Solve for x
    x = 1,317,156,383,916.71/1,309,606.89
  6. Step 6: Final answer
    x = 1,005,764.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.