Home / 1,315,728.25-1,815,710.51-712,116.25

Finding the Fourth Proportional to 1,315,728.25, 1,815,710.51 and 712,116.25

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Solution

The fourth proportional to 1,315,728.25, 1,815,710.51 and 712,116.25 is: 982,723.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,728.25 : 1,815,710.51 = 712,116.25 : x
  2. Step 2: Convert to fraction form
    1,315,728.25/1,815,710.51 = 712,116.25/x
  3. Step 3: Cross multiply
    1,315,728.25x = 1,815,710.51 × 712,116.25
  4. Step 4: Simplify right side
    1,315,728.25x = 1,292,996,959,466.79
  5. Step 5: Solve for x
    x = 1,292,996,959,466.79/1,315,728.25
  6. Step 6: Final answer
    x = 982,723.42

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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.