Home / 744,917.34-1,028,009.28-422,641.02

Finding the Fourth Proportional to 744,917.34, 1,028,009.28 and 422,641.02

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Solution

The fourth proportional to 744,917.34, 1,028,009.28 and 422,641.02 is: 583,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,917.34 : 1,028,009.28 = 422,641.02 : x
  2. Step 2: Convert to fraction form
    744,917.34/1,028,009.28 = 422,641.02/x
  3. Step 3: Cross multiply
    744,917.34x = 1,028,009.28 × 422,641.02
  4. Step 4: Simplify right side
    744,917.34x = 434,478,890,668.67
  5. Step 5: Solve for x
    x = 434,478,890,668.67/744,917.34
  6. Step 6: Final answer
    x = 583,257.86

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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.