Home / 1,298,739.64-1,792,255.44-725,779.66

Finding the Fourth Proportional to 1,298,739.64, 1,792,255.44 and 725,779.66

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Solution

The fourth proportional to 1,298,739.64, 1,792,255.44 and 725,779.66 is: 1,001,572.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,739.64 : 1,792,255.44 = 725,779.66 : x
  2. Step 2: Convert to fraction form
    1,298,739.64/1,792,255.44 = 725,779.66/x
  3. Step 3: Cross multiply
    1,298,739.64x = 1,792,255.44 × 725,779.66
  4. Step 4: Simplify right side
    1,298,739.64x = 1,300,782,543,876.35
  5. Step 5: Solve for x
    x = 1,300,782,543,876.35/1,298,739.64
  6. Step 6: Final answer
    x = 1,001,572.99

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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.