Home / 1,971,890.87-2,958,163.20-692,166.28

Finding the Fourth Proportional to 1,971,890.87, 2,958,163.20 and 692,166.28

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Solution

The fourth proportional to 1,971,890.87, 2,958,163.20 and 692,166.28 is: 1,038,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,890.87 : 2,958,163.20 = 692,166.28 : x
  2. Step 2: Convert to fraction form
    1,971,890.87/2,958,163.20 = 692,166.28/x
  3. Step 3: Cross multiply
    1,971,890.87x = 2,958,163.20 × 692,166.28
  4. Step 4: Simplify right side
    1,971,890.87x = 2,047,540,809,888.00
  5. Step 5: Solve for x
    x = 2,047,540,809,888.00/1,971,890.87
  6. Step 6: Final answer
    x = 1,038,364.16

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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.