Home / 428,541.16-591,374.82-258,713.32

Finding the Fourth Proportional to 428,541.16, 591,374.82 and 258,713.32

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Solution

The fourth proportional to 428,541.16, 591,374.82 and 258,713.32 is: 357,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,541.16 : 591,374.82 = 258,713.32 : x
  2. Step 2: Convert to fraction form
    428,541.16/591,374.82 = 258,713.32/x
  3. Step 3: Cross multiply
    428,541.16x = 591,374.82 × 258,713.32
  4. Step 4: Simplify right side
    428,541.16x = 152,996,543,046.60
  5. Step 5: Solve for x
    x = 152,996,543,046.60/428,541.16
  6. Step 6: Final answer
    x = 357,017.15

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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.