Home / 830,725-1,246,087.38-199,638.81

Finding the Fourth Proportional to 830,725, 1,246,087.38 and 199,638.81

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Solution

The fourth proportional to 830,725, 1,246,087.38 and 199,638.81 is: 299,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,725 : 1,246,087.38 = 199,638.81 : x
  2. Step 2: Convert to fraction form
    830,725/1,246,087.38 = 199,638.81/x
  3. Step 3: Cross multiply
    830,725x = 1,246,087.38 × 199,638.81
  4. Step 4: Simplify right side
    830,725x = 248,767,401,699.22
  5. Step 5: Solve for x
    x = 248,767,401,699.22/830,725
  6. Step 6: Final answer
    x = 299,458.19

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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.