Home / 726,275.80-1,089,413.70-353,027.80

Finding the Fourth Proportional to 726,275.80, 1,089,413.70 and 353,027.80

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Solution

The fourth proportional to 726,275.80, 1,089,413.70 and 353,027.80 is: 529,541.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,275.80 : 1,089,413.70 = 353,027.80 : x
  2. Step 2: Convert to fraction form
    726,275.80/1,089,413.70 = 353,027.80/x
  3. Step 3: Cross multiply
    726,275.80x = 1,089,413.70 × 353,027.80
  4. Step 4: Simplify right side
    726,275.80x = 384,593,321,800.86
  5. Step 5: Solve for x
    x = 384,593,321,800.86/726,275.80
  6. Step 6: Final answer
    x = 529,541.70

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Double scale
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Similar ratio
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1.5x scale

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.