Home / 811,021.68-1,119,291.57-448,472.88

Finding the Fourth Proportional to 811,021.68, 1,119,291.57 and 448,472.88

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Solution

The fourth proportional to 811,021.68, 1,119,291.57 and 448,472.88 is: 618,937.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,021.68 : 1,119,291.57 = 448,472.88 : x
  2. Step 2: Convert to fraction form
    811,021.68/1,119,291.57 = 448,472.88/x
  3. Step 3: Cross multiply
    811,021.68x = 1,119,291.57 × 448,472.88
  4. Step 4: Simplify right side
    811,021.68x = 501,971,913,957.62
  5. Step 5: Solve for x
    x = 501,971,913,957.62/811,021.68
  6. Step 6: Final answer
    x = 618,937.73

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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.