Home / 828,112.12-1,242,430.64-295,621.36

Finding the Fourth Proportional to 828,112.12, 1,242,430.64 and 295,621.36

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Solution

The fourth proportional to 828,112.12, 1,242,430.64 and 295,621.36 is: 443,525.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,112.12 : 1,242,430.64 = 295,621.36 : x
  2. Step 2: Convert to fraction form
    828,112.12/1,242,430.64 = 295,621.36/x
  3. Step 3: Cross multiply
    828,112.12x = 1,242,430.64 × 295,621.36
  4. Step 4: Simplify right side
    828,112.12x = 367,289,035,502.47
  5. Step 5: Solve for x
    x = 367,289,035,502.47/828,112.12
  6. Step 6: Final answer
    x = 443,525.73

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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.