Home / 1,327,986.42-1,991,125.95-872,038.95

Finding the Fourth Proportional to 1,327,986.42, 1,991,125.95 and 872,038.95

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Solution

The fourth proportional to 1,327,986.42, 1,991,125.95 and 872,038.95 is: 1,307,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,986.42 : 1,991,125.95 = 872,038.95 : x
  2. Step 2: Convert to fraction form
    1,327,986.42/1,991,125.95 = 872,038.95/x
  3. Step 3: Cross multiply
    1,327,986.42x = 1,991,125.95 × 872,038.95
  4. Step 4: Simplify right side
    1,327,986.42x = 1,736,339,382,755.75
  5. Step 5: Solve for x
    x = 1,736,339,382,755.75/1,327,986.42
  6. Step 6: Final answer
    x = 1,307,497.85

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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.