Home / 428,710.49-591,577.85-247,480.81

Finding the Fourth Proportional to 428,710.49, 591,577.85 and 247,480.81

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Solution

The fourth proportional to 428,710.49, 591,577.85 and 247,480.81 is: 341,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,710.49 : 591,577.85 = 247,480.81 : x
  2. Step 2: Convert to fraction form
    428,710.49/591,577.85 = 247,480.81/x
  3. Step 3: Cross multiply
    428,710.49x = 591,577.85 × 247,480.81
  4. Step 4: Simplify right side
    428,710.49x = 146,404,162,538.17
  5. Step 5: Solve for x
    x = 146,404,162,538.17/428,710.49
  6. Step 6: Final answer
    x = 341,498.90

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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.