Home / 820,147.60-1,230,221.40-809,088.40

Finding the Fourth Proportional to 820,147.60, 1,230,221.40 and 809,088.40

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Solution

The fourth proportional to 820,147.60, 1,230,221.40 and 809,088.40 is: 1,213,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,147.60 : 1,230,221.40 = 809,088.40 : x
  2. Step 2: Convert to fraction form
    820,147.60/1,230,221.40 = 809,088.40/x
  3. Step 3: Cross multiply
    820,147.60x = 1,230,221.40 × 809,088.40
  4. Step 4: Simplify right side
    820,147.60x = 995,357,864,171.76
  5. Step 5: Solve for x
    x = 995,357,864,171.76/820,147.60
  6. Step 6: Final answer
    x = 1,213,632.60

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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.