Home / 1,218,883.90-1,682,064.48-675,007.78

Finding the Fourth Proportional to 1,218,883.90, 1,682,064.48 and 675,007.78

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Solution

The fourth proportional to 1,218,883.90, 1,682,064.48 and 675,007.78 is: 931,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,883.90 : 1,682,064.48 = 675,007.78 : x
  2. Step 2: Convert to fraction form
    1,218,883.90/1,682,064.48 = 675,007.78/x
  3. Step 3: Cross multiply
    1,218,883.90x = 1,682,064.48 × 675,007.78
  4. Step 4: Simplify right side
    1,218,883.90x = 1,135,406,610,461.65
  5. Step 5: Solve for x
    x = 1,135,406,610,461.65/1,218,883.90
  6. Step 6: Final answer
    x = 931,513.34

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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.