Home / 1,230,815.25-1,698,480.09-772,176.51

Finding the Fourth Proportional to 1,230,815.25, 1,698,480.09 and 772,176.51

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Solution

The fourth proportional to 1,230,815.25, 1,698,480.09 and 772,176.51 is: 1,065,575.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,815.25 : 1,698,480.09 = 772,176.51 : x
  2. Step 2: Convert to fraction form
    1,230,815.25/1,698,480.09 = 772,176.51/x
  3. Step 3: Cross multiply
    1,230,815.25x = 1,698,480.09 × 772,176.51
  4. Step 4: Simplify right side
    1,230,815.25x = 1,311,526,428,200.69
  5. Step 5: Solve for x
    x = 1,311,526,428,200.69/1,230,815.25
  6. Step 6: Final answer
    x = 1,065,575.38

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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.