Home / 890,013.60-1,335,057.33-258,927.39

Finding the Fourth Proportional to 890,013.60, 1,335,057.33 and 258,927.39

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Solution

The fourth proportional to 890,013.60, 1,335,057.33 and 258,927.39 is: 388,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,013.60 : 1,335,057.33 = 258,927.39 : x
  2. Step 2: Convert to fraction form
    890,013.60/1,335,057.33 = 258,927.39/x
  3. Step 3: Cross multiply
    890,013.60x = 1,335,057.33 × 258,927.39
  4. Step 4: Simplify right side
    890,013.60x = 345,682,909,957.27
  5. Step 5: Solve for x
    x = 345,682,909,957.27/890,013.60
  6. Step 6: Final answer
    x = 388,401.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.