Home / 811,456.02-1,119,789.09-448,900.02

Finding the Fourth Proportional to 811,456.02, 1,119,789.09 and 448,900.02

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Solution

The fourth proportional to 811,456.02, 1,119,789.09 and 448,900.02 is: 619,470.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,456.02 : 1,119,789.09 = 448,900.02 : x
  2. Step 2: Convert to fraction form
    811,456.02/1,119,789.09 = 448,900.02/x
  3. Step 3: Cross multiply
    811,456.02x = 1,119,789.09 × 448,900.02
  4. Step 4: Simplify right side
    811,456.02x = 502,673,344,896.78
  5. Step 5: Solve for x
    x = 502,673,344,896.78/811,456.02
  6. Step 6: Final answer
    x = 619,470.84

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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.