Home / 1,993,556.80-2,991,026.40-872,430.40

Finding the Fourth Proportional to 1,993,556.80, 2,991,026.40 and 872,430.40

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Solution

The fourth proportional to 1,993,556.80, 2,991,026.40 and 872,430.40 is: 1,308,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,556.80 : 2,991,026.40 = 872,430.40 : x
  2. Step 2: Convert to fraction form
    1,993,556.80/2,991,026.40 = 872,430.40/x
  3. Step 3: Cross multiply
    1,993,556.80x = 2,991,026.40 × 872,430.40
  4. Step 4: Simplify right side
    1,993,556.80x = 2,609,462,358,562.56
  5. Step 5: Solve for x
    x = 2,609,462,358,562.56/1,993,556.80
  6. Step 6: Final answer
    x = 1,308,948.09

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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.