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Finding the Fourth Proportional to 654,659.20, 979,915.20 and 468,035.20

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Solution

The fourth proportional to 654,659.20, 979,915.20 and 468,035.20 is: 700,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,659.20 : 979,915.20 = 468,035.20 : x
  2. Step 2: Convert to fraction form
    654,659.20/979,915.20 = 468,035.20/x
  3. Step 3: Cross multiply
    654,659.20x = 979,915.20 × 468,035.20
  4. Step 4: Simplify right side
    654,659.20x = 458,634,806,615.04
  5. Step 5: Solve for x
    x = 458,634,806,615.04/654,659.20
  6. Step 6: Final answer
    x = 700,570.32

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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.