Home / 828,982.40-1,243,473.60-355,587.20

Finding the Fourth Proportional to 828,982.40, 1,243,473.60 and 355,587.20

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Solution

The fourth proportional to 828,982.40, 1,243,473.60 and 355,587.20 is: 533,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,982.40 : 1,243,473.60 = 355,587.20 : x
  2. Step 2: Convert to fraction form
    828,982.40/1,243,473.60 = 355,587.20/x
  3. Step 3: Cross multiply
    828,982.40x = 1,243,473.60 × 355,587.20
  4. Step 4: Simplify right side
    828,982.40x = 442,163,295,697.92
  5. Step 5: Solve for x
    x = 442,163,295,697.92/828,982.40
  6. Step 6: Final answer
    x = 533,380.80

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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.