Home / 787,114.90-1,180,672.35-313,873.30

Finding the Fourth Proportional to 787,114.90, 1,180,672.35 and 313,873.30

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Solution

The fourth proportional to 787,114.90, 1,180,672.35 and 313,873.30 is: 470,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,114.90 : 1,180,672.35 = 313,873.30 : x
  2. Step 2: Convert to fraction form
    787,114.90/1,180,672.35 = 313,873.30/x
  3. Step 3: Cross multiply
    787,114.90x = 1,180,672.35 × 313,873.30
  4. Step 4: Simplify right side
    787,114.90x = 370,581,526,713.26
  5. Step 5: Solve for x
    x = 370,581,526,713.26/787,114.90
  6. Step 6: Final answer
    x = 470,809.95

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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.