Home / 738,485.20-1,108,246.20-318,062.80

Finding the Fourth Proportional to 738,485.20, 1,108,246.20 and 318,062.80

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Solution

The fourth proportional to 738,485.20, 1,108,246.20 and 318,062.80 is: 477,317.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,485.20 : 1,108,246.20 = 318,062.80 : x
  2. Step 2: Convert to fraction form
    738,485.20/1,108,246.20 = 318,062.80/x
  3. Step 3: Cross multiply
    738,485.20x = 1,108,246.20 × 318,062.80
  4. Step 4: Simplify right side
    738,485.20x = 352,491,889,461.36
  5. Step 5: Solve for x
    x = 352,491,889,461.36/738,485.20
  6. Step 6: Final answer
    x = 477,317.47

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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.