Home / 902,928.75-1,245,612.36-540,279.60

Finding the Fourth Proportional to 902,928.75, 1,245,612.36 and 540,279.60

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Solution

The fourth proportional to 902,928.75, 1,245,612.36 and 540,279.60 is: 745,328.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,928.75 : 1,245,612.36 = 540,279.60 : x
  2. Step 2: Convert to fraction form
    902,928.75/1,245,612.36 = 540,279.60/x
  3. Step 3: Cross multiply
    902,928.75x = 1,245,612.36 × 540,279.60
  4. Step 4: Simplify right side
    902,928.75x = 672,978,947,615.86
  5. Step 5: Solve for x
    x = 672,978,947,615.86/902,928.75
  6. Step 6: Final answer
    x = 745,328.96

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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.