Home / 428,710.13-591,577.33-247,480.44

Finding the Fourth Proportional to 428,710.13, 591,577.33 and 247,480.44

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Solution

The fourth proportional to 428,710.13, 591,577.33 and 247,480.44 is: 341,498.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,710.13 : 591,577.33 = 247,480.44 : x
  2. Step 2: Convert to fraction form
    428,710.13/591,577.33 = 247,480.44/x
  3. Step 3: Cross multiply
    428,710.13x = 591,577.33 × 247,480.44
  4. Step 4: Simplify right side
    428,710.13x = 146,403,817,303.72
  5. Step 5: Solve for x
    x = 146,403,817,303.72/428,710.13
  6. Step 6: Final answer
    x = 341,498.39

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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.