Home / 830,422.07-1,145,982.46-448,448.85

Finding the Fourth Proportional to 830,422.07, 1,145,982.46 and 448,448.85

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Solution

The fourth proportional to 830,422.07, 1,145,982.46 and 448,448.85 is: 618,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,422.07 : 1,145,982.46 = 448,448.85 : x
  2. Step 2: Convert to fraction form
    830,422.07/1,145,982.46 = 448,448.85/x
  3. Step 3: Cross multiply
    830,422.07x = 1,145,982.46 × 448,448.85
  4. Step 4: Simplify right side
    830,422.07x = 513,914,516,307.17
  5. Step 5: Solve for x
    x = 513,914,516,307.17/830,422.07
  6. Step 6: Final answer
    x = 618,859.41

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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.