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Finding the Fourth Proportional to 809,748.70, 1,214,623.05 and 248,811.10

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Solution

The fourth proportional to 809,748.70, 1,214,623.05 and 248,811.10 is: 373,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,748.70 : 1,214,623.05 = 248,811.10 : x
  2. Step 2: Convert to fraction form
    809,748.70/1,214,623.05 = 248,811.10/x
  3. Step 3: Cross multiply
    809,748.70x = 1,214,623.05 × 248,811.10
  4. Step 4: Simplify right side
    809,748.70x = 302,211,697,155.86
  5. Step 5: Solve for x
    x = 302,211,697,155.86/809,748.70
  6. Step 6: Final answer
    x = 373,216.65

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Double scale
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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.