Home / 428,411.43-591,280.97-247,090.91

Finding the Fourth Proportional to 428,411.43, 591,280.97 and 247,090.91

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Solution

The fourth proportional to 428,411.43, 591,280.97 and 247,090.91 is: 341,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,411.43 : 591,280.97 = 247,090.91 : x
  2. Step 2: Convert to fraction form
    428,411.43/591,280.97 = 247,090.91/x
  3. Step 3: Cross multiply
    428,411.43x = 591,280.97 × 247,090.91
  4. Step 4: Simplify right side
    428,411.43x = 146,100,148,751.12
  5. Step 5: Solve for x
    x = 146,100,148,751.12/428,411.43
  6. Step 6: Final answer
    x = 341,027.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.