Home / 1,027,129.52-1,539,859.52-428,536.64

Finding the Fourth Proportional to 1,027,129.52, 1,539,859.52 and 428,536.64

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Solution

The fourth proportional to 1,027,129.52, 1,539,859.52 and 428,536.64 is: 642,456.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,129.52 : 1,539,859.52 = 428,536.64 : x
  2. Step 2: Convert to fraction form
    1,027,129.52/1,539,859.52 = 428,536.64/x
  3. Step 3: Cross multiply
    1,027,129.52x = 1,539,859.52 × 428,536.64
  4. Step 4: Simplify right side
    1,027,129.52x = 659,886,224,772.81
  5. Step 5: Solve for x
    x = 659,886,224,772.81/1,027,129.52
  6. Step 6: Final answer
    x = 642,456.68

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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.