Home / 724,285.80-1,085,996.70-444,004.20

Finding the Fourth Proportional to 724,285.80, 1,085,996.70 and 444,004.20

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Solution

The fourth proportional to 724,285.80, 1,085,996.70 and 444,004.20 is: 665,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,285.80 : 1,085,996.70 = 444,004.20 : x
  2. Step 2: Convert to fraction form
    724,285.80/1,085,996.70 = 444,004.20/x
  3. Step 3: Cross multiply
    724,285.80x = 1,085,996.70 × 444,004.20
  4. Step 4: Simplify right side
    724,285.80x = 482,187,095,986.14
  5. Step 5: Solve for x
    x = 482,187,095,986.14/724,285.80
  6. Step 6: Final answer
    x = 665,741.47

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Double scale
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Similar ratio
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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.