Home / 874,461.34-1,206,842.74-511,863.22

Finding the Fourth Proportional to 874,461.34, 1,206,842.74 and 511,863.22

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Solution

The fourth proportional to 874,461.34, 1,206,842.74 and 511,863.22 is: 706,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,461.34 : 1,206,842.74 = 511,863.22 : x
  2. Step 2: Convert to fraction form
    874,461.34/1,206,842.74 = 511,863.22/x
  3. Step 3: Cross multiply
    874,461.34x = 1,206,842.74 × 511,863.22
  4. Step 4: Simplify right side
    874,461.34x = 617,738,410,930.02
  5. Step 5: Solve for x
    x = 617,738,410,930.02/874,461.34
  6. Step 6: Final answer
    x = 706,421.64

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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.