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Finding the Fourth Proportional to 649,915.60, 896,866.75 and 359,519.60

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Solution

The fourth proportional to 649,915.60, 896,866.75 and 359,519.60 is: 496,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,915.60 : 896,866.75 = 359,519.60 : x
  2. Step 2: Convert to fraction form
    649,915.60/896,866.75 = 359,519.60/x
  3. Step 3: Cross multiply
    649,915.60x = 896,866.75 × 359,519.60
  4. Step 4: Simplify right side
    649,915.60x = 322,441,170,837.69
  5. Step 5: Solve for x
    x = 322,441,170,837.69/649,915.60
  6. Step 6: Final answer
    x = 496,127.76

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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.