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Finding the Fourth Proportional to 553,722.60, 830,583.90 and 273,786.60

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Solution

The fourth proportional to 553,722.60, 830,583.90 and 273,786.60 is: 410,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,722.60 : 830,583.90 = 273,786.60 : x
  2. Step 2: Convert to fraction form
    553,722.60/830,583.90 = 273,786.60/x
  3. Step 3: Cross multiply
    553,722.60x = 830,583.90 × 273,786.60
  4. Step 4: Simplify right side
    553,722.60x = 227,402,741,995.74
  5. Step 5: Solve for x
    x = 227,402,741,995.74/553,722.60
  6. Step 6: Final answer
    x = 410,679.90

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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.