Home / 830,422.63-1,145,983.23-448,449.41

Finding the Fourth Proportional to 830,422.63, 1,145,983.23 and 448,449.41

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Solution

The fourth proportional to 830,422.63, 1,145,983.23 and 448,449.41 is: 618,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,422.63 : 1,145,983.23 = 448,449.41 : x
  2. Step 2: Convert to fraction form
    830,422.63/1,145,983.23 = 448,449.41/x
  3. Step 3: Cross multiply
    830,422.63x = 1,145,983.23 × 448,449.41
  4. Step 4: Simplify right side
    830,422.63x = 513,915,503,363.39
  5. Step 5: Solve for x
    x = 513,915,503,363.39/830,422.63
  6. Step 6: Final answer
    x = 618,860.19

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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.