Home / 738,487.12-1,109,808.24-439,021.48

Finding the Fourth Proportional to 738,487.12, 1,109,808.24 and 439,021.48

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Solution

The fourth proportional to 738,487.12, 1,109,808.24 and 439,021.48 is: 659,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,487.12 : 1,109,808.24 = 439,021.48 : x
  2. Step 2: Convert to fraction form
    738,487.12/1,109,808.24 = 439,021.48/x
  3. Step 3: Cross multiply
    738,487.12x = 1,109,808.24 × 439,021.48
  4. Step 4: Simplify right side
    738,487.12x = 487,229,656,041.00
  5. Step 5: Solve for x
    x = 487,229,656,041.00/738,487.12
  6. Step 6: Final answer
    x = 659,767.30

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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.