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Finding the Fourth Proportional to 634,915.53, 876,200.49 and 348,445.80

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Solution

The fourth proportional to 634,915.53, 876,200.49 and 348,445.80 is: 480,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,915.53 : 876,200.49 = 348,445.80 : x
  2. Step 2: Convert to fraction form
    634,915.53/876,200.49 = 348,445.80/x
  3. Step 3: Cross multiply
    634,915.53x = 876,200.49 × 348,445.80
  4. Step 4: Simplify right side
    634,915.53x = 305,308,380,698.44
  5. Step 5: Solve for x
    x = 305,308,380,698.44/634,915.53
  6. Step 6: Final answer
    x = 480,864.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.