Home / 811,306.55-1,119,469.28-448,659.56

Finding the Fourth Proportional to 811,306.55, 1,119,469.28 and 448,659.56

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Solution

The fourth proportional to 811,306.55, 1,119,469.28 and 448,659.56 is: 619,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,306.55 : 1,119,469.28 = 448,659.56 : x
  2. Step 2: Convert to fraction form
    811,306.55/1,119,469.28 = 448,659.56/x
  3. Step 3: Cross multiply
    811,306.55x = 1,119,469.28 × 448,659.56
  4. Step 4: Simplify right side
    811,306.55x = 502,260,595,153.69
  5. Step 5: Solve for x
    x = 502,260,595,153.69/811,306.55
  6. Step 6: Final answer
    x = 619,076.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.