Home / 790,835.70-1,091,353.85-428,259.96

Finding the Fourth Proportional to 790,835.70, 1,091,353.85 and 428,259.96

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Solution

The fourth proportional to 790,835.70, 1,091,353.85 and 428,259.96 is: 590,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,835.70 : 1,091,353.85 = 428,259.96 : x
  2. Step 2: Convert to fraction form
    790,835.70/1,091,353.85 = 428,259.96/x
  3. Step 3: Cross multiply
    790,835.70x = 1,091,353.85 × 428,259.96
  4. Step 4: Simplify right side
    790,835.70x = 467,383,158,020.48
  5. Step 5: Solve for x
    x = 467,383,158,020.48/790,835.70
  6. Step 6: Final answer
    x = 590,999.06

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1.5x scale

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.