Home / 428,360.08-591,152.16-258,561.04

Finding the Fourth Proportional to 428,360.08, 591,152.16 and 258,561.04

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Solution

The fourth proportional to 428,360.08, 591,152.16 and 258,561.04 is: 356,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,360.08 : 591,152.16 = 258,561.04 : x
  2. Step 2: Convert to fraction form
    428,360.08/591,152.16 = 258,561.04/x
  3. Step 3: Cross multiply
    428,360.08x = 591,152.16 × 258,561.04
  4. Step 4: Simplify right side
    428,360.08x = 152,848,917,287.85
  5. Step 5: Solve for x
    x = 152,848,917,287.85/428,360.08
  6. Step 6: Final answer
    x = 356,823.44

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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.