Home / 1,315,705.86-1,815,673.53-712,093.86

Finding the Fourth Proportional to 1,315,705.86, 1,815,673.53 and 712,093.86

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Solution

The fourth proportional to 1,315,705.86, 1,815,673.53 and 712,093.86 is: 982,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,705.86 : 1,815,673.53 = 712,093.86 : x
  2. Step 2: Convert to fraction form
    1,315,705.86/1,815,673.53 = 712,093.86/x
  3. Step 3: Cross multiply
    1,315,705.86x = 1,815,673.53 × 712,093.86
  4. Step 4: Simplify right side
    1,315,705.86x = 1,292,929,972,477.53
  5. Step 5: Solve for x
    x = 1,292,929,972,477.53/1,315,705.86
  6. Step 6: Final answer
    x = 982,689.23

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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.