Home / 850,541.60-1,275,812.40-345,344.60

Finding the Fourth Proportional to 850,541.60, 1,275,812.40 and 345,344.60

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Solution

The fourth proportional to 850,541.60, 1,275,812.40 and 345,344.60 is: 518,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,541.60 : 1,275,812.40 = 345,344.60 : x
  2. Step 2: Convert to fraction form
    850,541.60/1,275,812.40 = 345,344.60/x
  3. Step 3: Cross multiply
    850,541.60x = 1,275,812.40 × 345,344.60
  4. Step 4: Simplify right side
    850,541.60x = 440,594,922,953.04
  5. Step 5: Solve for x
    x = 440,594,922,953.04/850,541.60
  6. Step 6: Final answer
    x = 518,016.90

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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.