Home / 721,351.83-1,082,325.69-316,334.39

Finding the Fourth Proportional to 721,351.83, 1,082,325.69 and 316,334.39

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Solution

The fourth proportional to 721,351.83, 1,082,325.69 and 316,334.39 is: 474,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,351.83 : 1,082,325.69 = 316,334.39 : x
  2. Step 2: Convert to fraction form
    721,351.83/1,082,325.69 = 316,334.39/x
  3. Step 3: Cross multiply
    721,351.83x = 1,082,325.69 × 316,334.39
  4. Step 4: Simplify right side
    721,351.83x = 342,376,831,515.85
  5. Step 5: Solve for x
    x = 342,376,831,515.85/721,351.83
  6. Step 6: Final answer
    x = 474,632.24

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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.