Home / 828,218.40-1,242,327.60-355,826.40

Finding the Fourth Proportional to 828,218.40, 1,242,327.60 and 355,826.40

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Solution

The fourth proportional to 828,218.40, 1,242,327.60 and 355,826.40 is: 533,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,218.40 : 1,242,327.60 = 355,826.40 : x
  2. Step 2: Convert to fraction form
    828,218.40/1,242,327.60 = 355,826.40/x
  3. Step 3: Cross multiply
    828,218.40x = 1,242,327.60 × 355,826.40
  4. Step 4: Simplify right side
    828,218.40x = 442,052,957,528.64
  5. Step 5: Solve for x
    x = 442,052,957,528.64/828,218.40
  6. Step 6: Final answer
    x = 533,739.60

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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.