Home / 909,538.40-1,365,253.88-669,922.86

Finding the Fourth Proportional to 909,538.40, 1,365,253.88 and 669,922.86

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Solution

The fourth proportional to 909,538.40, 1,365,253.88 and 669,922.86 is: 1,005,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,538.40 : 1,365,253.88 = 669,922.86 : x
  2. Step 2: Convert to fraction form
    909,538.40/1,365,253.88 = 669,922.86/x
  3. Step 3: Cross multiply
    909,538.40x = 1,365,253.88 × 669,922.86
  4. Step 4: Simplify right side
    909,538.40x = 914,614,783,915.70
  5. Step 5: Solve for x
    x = 914,614,783,915.70/909,538.40
  6. Step 6: Final answer
    x = 1,005,581.27

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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.