Home / 1,310,559.60-1,965,904.20-680,703.60

Finding the Fourth Proportional to 1,310,559.60, 1,965,904.20 and 680,703.60

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Solution

The fourth proportional to 1,310,559.60, 1,965,904.20 and 680,703.60 is: 1,021,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,559.60 : 1,965,904.20 = 680,703.60 : x
  2. Step 2: Convert to fraction form
    1,310,559.60/1,965,904.20 = 680,703.60/x
  3. Step 3: Cross multiply
    1,310,559.60x = 1,965,904.20 × 680,703.60
  4. Step 4: Simplify right side
    1,310,559.60x = 1,338,198,066,195.12
  5. Step 5: Solve for x
    x = 1,338,198,066,195.12/1,310,559.60
  6. Step 6: Final answer
    x = 1,021,089.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.