Home / 830,422.01-1,145,982.37-448,448.79

Finding the Fourth Proportional to 830,422.01, 1,145,982.37 and 448,448.79

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Solution

The fourth proportional to 830,422.01, 1,145,982.37 and 448,448.79 is: 618,859.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,422.01 : 1,145,982.37 = 448,448.79 : x
  2. Step 2: Convert to fraction form
    830,422.01/1,145,982.37 = 448,448.79/x
  3. Step 3: Cross multiply
    830,422.01x = 1,145,982.37 × 448,448.79
  4. Step 4: Simplify right side
    830,422.01x = 513,914,402,579.04
  5. Step 5: Solve for x
    x = 513,914,402,579.04/830,422.01
  6. Step 6: Final answer
    x = 618,859.33

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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.