Home / 738,548.64-1,107,379.88-338,688.54

Finding the Fourth Proportional to 738,548.64, 1,107,379.88 and 338,688.54

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Solution

The fourth proportional to 738,548.64, 1,107,379.88 and 338,688.54 is: 507,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,548.64 : 1,107,379.88 = 338,688.54 : x
  2. Step 2: Convert to fraction form
    738,548.64/1,107,379.88 = 338,688.54/x
  3. Step 3: Cross multiply
    738,548.64x = 1,107,379.88 × 338,688.54
  4. Step 4: Simplify right side
    738,548.64x = 375,056,874,782.58
  5. Step 5: Solve for x
    x = 375,056,874,782.58/738,548.64
  6. Step 6: Final answer
    x = 507,829.62

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1.5x scale

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.