Home / 828,453.28-1,242,667.43-372,722.68

Finding the Fourth Proportional to 828,453.28, 1,242,667.43 and 372,722.68

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Solution

The fourth proportional to 828,453.28, 1,242,667.43 and 372,722.68 is: 559,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,453.28 : 1,242,667.43 = 372,722.68 : x
  2. Step 2: Convert to fraction form
    828,453.28/1,242,667.43 = 372,722.68/x
  3. Step 3: Cross multiply
    828,453.28x = 1,242,667.43 × 372,722.68
  4. Step 4: Simplify right side
    828,453.28x = 463,170,330,004.02
  5. Step 5: Solve for x
    x = 463,170,330,004.02/828,453.28
  6. Step 6: Final answer
    x = 559,078.40

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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.