Home / 1,315,726.25-1,815,707.75-712,114.25

Finding the Fourth Proportional to 1,315,726.25, 1,815,707.75 and 712,114.25

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Solution

The fourth proportional to 1,315,726.25, 1,815,707.75 and 712,114.25 is: 982,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,726.25 : 1,815,707.75 = 712,114.25 : x
  2. Step 2: Convert to fraction form
    1,315,726.25/1,815,707.75 = 712,114.25/x
  3. Step 3: Cross multiply
    1,315,726.25x = 1,815,707.75 × 712,114.25
  4. Step 4: Simplify right side
    1,315,726.25x = 1,292,991,349,971.33
  5. Step 5: Solve for x
    x = 1,292,991,349,971.33/1,315,726.25
  6. Step 6: Final answer
    x = 982,720.65

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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.