Home / 744,288.72-1,027,108.80-404,749.68

Finding the Fourth Proportional to 744,288.72, 1,027,108.80 and 404,749.68

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Solution

The fourth proportional to 744,288.72, 1,027,108.80 and 404,749.68 is: 558,549.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,288.72 : 1,027,108.80 = 404,749.68 : x
  2. Step 2: Convert to fraction form
    744,288.72/1,027,108.80 = 404,749.68/x
  3. Step 3: Cross multiply
    744,288.72x = 1,027,108.80 × 404,749.68
  4. Step 4: Simplify right side
    744,288.72x = 415,721,958,125.18
  5. Step 5: Solve for x
    x = 415,721,958,125.18/744,288.72
  6. Step 6: Final answer
    x = 558,549.32

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1.5x scale

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.