Home / 960,071.55-1,440,102.12-391,450.44

Finding the Fourth Proportional to 960,071.55, 1,440,102.12 and 391,450.44

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Solution

The fourth proportional to 960,071.55, 1,440,102.12 and 391,450.44 is: 587,173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,071.55 : 1,440,102.12 = 391,450.44 : x
  2. Step 2: Convert to fraction form
    960,071.55/1,440,102.12 = 391,450.44/x
  3. Step 3: Cross multiply
    960,071.55x = 1,440,102.12 × 391,450.44
  4. Step 4: Simplify right side
    960,071.55x = 563,728,608,518.93
  5. Step 5: Solve for x
    x = 563,728,608,518.93/960,071.55
  6. Step 6: Final answer
    x = 587,173.54

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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.