Home / 830,642.22-1,146,286.72-448,669

Finding the Fourth Proportional to 830,642.22, 1,146,286.72 and 448,669

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Solution

The fourth proportional to 830,642.22, 1,146,286.72 and 448,669 is: 619,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,642.22 : 1,146,286.72 = 448,669 : x
  2. Step 2: Convert to fraction form
    830,642.22/1,146,286.72 = 448,669/x
  3. Step 3: Cross multiply
    830,642.22x = 1,146,286.72 × 448,669
  4. Step 4: Simplify right side
    830,642.22x = 514,303,316,375.68
  5. Step 5: Solve for x
    x = 514,303,316,375.68/830,642.22
  6. Step 6: Final answer
    x = 619,163.47

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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.