Home / 811,020.40-1,119,163.01-448,422.51

Finding the Fourth Proportional to 811,020.40, 1,119,163.01 and 448,422.51

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Solution

The fourth proportional to 811,020.40, 1,119,163.01 and 448,422.51 is: 618,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,020.40 : 1,119,163.01 = 448,422.51 : x
  2. Step 2: Convert to fraction form
    811,020.40/1,119,163.01 = 448,422.51/x
  3. Step 3: Cross multiply
    811,020.40x = 1,119,163.01 × 448,422.51
  4. Step 4: Simplify right side
    811,020.40x = 501,857,886,043.36
  5. Step 5: Solve for x
    x = 501,857,886,043.36/811,020.40
  6. Step 6: Final answer
    x = 618,798.10

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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.