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Finding the Fourth Proportional to 519,344.40, 779,162.40 and 253,113.60

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Solution

The fourth proportional to 519,344.40, 779,162.40 and 253,113.60 is: 379,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,344.40 : 779,162.40 = 253,113.60 : x
  2. Step 2: Convert to fraction form
    519,344.40/779,162.40 = 253,113.60/x
  3. Step 3: Cross multiply
    519,344.40x = 779,162.40 × 253,113.60
  4. Step 4: Simplify right side
    519,344.40x = 197,216,600,048.64
  5. Step 5: Solve for x
    x = 197,216,600,048.64/519,344.40
  6. Step 6: Final answer
    x = 379,741.46

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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.