Home / 428,305.48-591,045.62-247,025

Finding the Fourth Proportional to 428,305.48, 591,045.62 and 247,025

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Solution

The fourth proportional to 428,305.48, 591,045.62 and 247,025 is: 340,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,305.48 : 591,045.62 = 247,025 : x
  2. Step 2: Convert to fraction form
    428,305.48/591,045.62 = 247,025/x
  3. Step 3: Cross multiply
    428,305.48x = 591,045.62 × 247,025
  4. Step 4: Simplify right side
    428,305.48x = 146,003,044,280.50
  5. Step 5: Solve for x
    x = 146,003,044,280.50/428,305.48
  6. Step 6: Final answer
    x = 340,885.31

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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.