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Finding the Fourth Proportional to 899,062.80, 1,348,594.20 and 615,627.60

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Solution

The fourth proportional to 899,062.80, 1,348,594.20 and 615,627.60 is: 923,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,062.80 : 1,348,594.20 = 615,627.60 : x
  2. Step 2: Convert to fraction form
    899,062.80/1,348,594.20 = 615,627.60/x
  3. Step 3: Cross multiply
    899,062.80x = 1,348,594.20 × 615,627.60
  4. Step 4: Simplify right side
    899,062.80x = 830,231,810,719.92
  5. Step 5: Solve for x
    x = 830,231,810,719.92/899,062.80
  6. Step 6: Final answer
    x = 923,441.40

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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.