Home / 830,422.27-1,145,982.70-448,449.04

Finding the Fourth Proportional to 830,422.27, 1,145,982.70 and 448,449.04

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Solution

The fourth proportional to 830,422.27, 1,145,982.70 and 448,449.04 is: 618,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,422.27 : 1,145,982.70 = 448,449.04 : x
  2. Step 2: Convert to fraction form
    830,422.27/1,145,982.70 = 448,449.04/x
  3. Step 3: Cross multiply
    830,422.27x = 1,145,982.70 × 448,449.04
  4. Step 4: Simplify right side
    830,422.27x = 513,914,841,671.61
  5. Step 5: Solve for x
    x = 513,914,841,671.61/830,422.27
  6. Step 6: Final answer
    x = 618,859.66

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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.