Home / 722,646.39-1,083,885.13-290,346.34

Finding the Fourth Proportional to 722,646.39, 1,083,885.13 and 290,346.34

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Solution

The fourth proportional to 722,646.39, 1,083,885.13 and 290,346.34 is: 435,485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,646.39 : 1,083,885.13 = 290,346.34 : x
  2. Step 2: Convert to fraction form
    722,646.39/1,083,885.13 = 290,346.34/x
  3. Step 3: Cross multiply
    722,646.39x = 1,083,885.13 × 290,346.34
  4. Step 4: Simplify right side
    722,646.39x = 314,702,080,161.43
  5. Step 5: Solve for x
    x = 314,702,080,161.43/722,646.39
  6. Step 6: Final answer
    x = 435,485.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.