Home / 724,416.40-1,085,749.80-369,247.60

Finding the Fourth Proportional to 724,416.40, 1,085,749.80 and 369,247.60

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Solution

The fourth proportional to 724,416.40, 1,085,749.80 and 369,247.60 is: 553,425.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,416.40 : 1,085,749.80 = 369,247.60 : x
  2. Step 2: Convert to fraction form
    724,416.40/1,085,749.80 = 369,247.60/x
  3. Step 3: Cross multiply
    724,416.40x = 1,085,749.80 × 369,247.60
  4. Step 4: Simplify right side
    724,416.40x = 400,910,507,850.48
  5. Step 5: Solve for x
    x = 400,910,507,850.48/724,416.40
  6. Step 6: Final answer
    x = 553,425.50

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Half scale
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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.