Home / 875,243.83-1,207,954.89-512,812.36

Finding the Fourth Proportional to 875,243.83, 1,207,954.89 and 512,812.36

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Solution

The fourth proportional to 875,243.83, 1,207,954.89 and 512,812.36 is: 707,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,243.83 : 1,207,954.89 = 512,812.36 : x
  2. Step 2: Convert to fraction form
    875,243.83/1,207,954.89 = 512,812.36/x
  3. Step 3: Cross multiply
    875,243.83x = 1,207,954.89 × 512,812.36
  4. Step 4: Simplify right side
    875,243.83x = 619,454,197,914.44
  5. Step 5: Solve for x
    x = 619,454,197,914.44/875,243.83
  6. Step 6: Final answer
    x = 707,750.43

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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.