Home / 724,352.40-1,085,653.80-369,183.60

Finding the Fourth Proportional to 724,352.40, 1,085,653.80 and 369,183.60

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Solution

The fourth proportional to 724,352.40, 1,085,653.80 and 369,183.60 is: 553,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,352.40 : 1,085,653.80 = 369,183.60 : x
  2. Step 2: Convert to fraction form
    724,352.40/1,085,653.80 = 369,183.60/x
  3. Step 3: Cross multiply
    724,352.40x = 1,085,653.80 × 369,183.60
  4. Step 4: Simplify right side
    724,352.40x = 400,805,578,237.68
  5. Step 5: Solve for x
    x = 400,805,578,237.68/724,352.40
  6. Step 6: Final answer
    x = 553,329.54

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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.