Home / 1,477,187.70-2,215,781.55-479,915.70

Finding the Fourth Proportional to 1,477,187.70, 2,215,781.55 and 479,915.70

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Solution

The fourth proportional to 1,477,187.70, 2,215,781.55 and 479,915.70 is: 719,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477,187.70 : 2,215,781.55 = 479,915.70 : x
  2. Step 2: Convert to fraction form
    1,477,187.70/2,215,781.55 = 479,915.70/x
  3. Step 3: Cross multiply
    1,477,187.70x = 2,215,781.55 × 479,915.70
  4. Step 4: Simplify right side
    1,477,187.70x = 1,063,388,353,615.34
  5. Step 5: Solve for x
    x = 1,063,388,353,615.34/1,477,187.70
  6. Step 6: Final answer
    x = 719,873.55

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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.