Home / 654,439.56-902,823.44-382,518.90

Finding the Fourth Proportional to 654,439.56, 902,823.44 and 382,518.90

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Solution

The fourth proportional to 654,439.56, 902,823.44 and 382,518.90 is: 527,698.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,439.56 : 902,823.44 = 382,518.90 : x
  2. Step 2: Convert to fraction form
    654,439.56/902,823.44 = 382,518.90/x
  3. Step 3: Cross multiply
    654,439.56x = 902,823.44 × 382,518.90
  4. Step 4: Simplify right side
    654,439.56x = 345,347,029,163.02
  5. Step 5: Solve for x
    x = 345,347,029,163.02/654,439.56
  6. Step 6: Final answer
    x = 527,698.89

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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.