Home / 428,310.89-591,095.16-247,019.52

Finding the Fourth Proportional to 428,310.89, 591,095.16 and 247,019.52

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Solution

The fourth proportional to 428,310.89, 591,095.16 and 247,019.52 is: 340,902.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,310.89 : 591,095.16 = 247,019.52 : x
  2. Step 2: Convert to fraction form
    428,310.89/591,095.16 = 247,019.52/x
  3. Step 3: Cross multiply
    428,310.89x = 591,095.16 × 247,019.52
  4. Step 4: Simplify right side
    428,310.89x = 146,012,041,462.43
  5. Step 5: Solve for x
    x = 146,012,041,462.43/428,310.89
  6. Step 6: Final answer
    x = 340,902.01

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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.