Home / 1,315,703.94-1,815,570.09-742,800.66

Finding the Fourth Proportional to 1,315,703.94, 1,815,570.09 and 742,800.66

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Solution

The fourth proportional to 1,315,703.94, 1,815,570.09 and 742,800.66 is: 1,025,007.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,703.94 : 1,815,570.09 = 742,800.66 : x
  2. Step 2: Convert to fraction form
    1,315,703.94/1,815,570.09 = 742,800.66/x
  3. Step 3: Cross multiply
    1,315,703.94x = 1,815,570.09 × 742,800.66
  4. Step 4: Simplify right side
    1,315,703.94x = 1,348,606,661,128.26
  5. Step 5: Solve for x
    x = 1,348,606,661,128.26/1,315,703.94
  6. Step 6: Final answer
    x = 1,025,007.69

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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.