Home / 880,109.96-1,214,509.75-540,512.60

Finding the Fourth Proportional to 880,109.96, 1,214,509.75 and 540,512.60

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Solution

The fourth proportional to 880,109.96, 1,214,509.75 and 540,512.60 is: 745,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,109.96 : 1,214,509.75 = 540,512.60 : x
  2. Step 2: Convert to fraction form
    880,109.96/1,214,509.75 = 540,512.60/x
  3. Step 3: Cross multiply
    880,109.96x = 1,214,509.75 × 540,512.60
  4. Step 4: Simplify right side
    880,109.96x = 656,457,815,274.02
  5. Step 5: Solve for x
    x = 656,457,815,274.02/880,109.96
  6. Step 6: Final answer
    x = 745,881.59

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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.