Home / 1,327,984.92-1,991,123.71-872,037.45

Finding the Fourth Proportional to 1,327,984.92, 1,991,123.71 and 872,037.45

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Solution

The fourth proportional to 1,327,984.92, 1,991,123.71 and 872,037.45 is: 1,307,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,984.92 : 1,991,123.71 = 872,037.45 : x
  2. Step 2: Convert to fraction form
    1,327,984.92/1,991,123.71 = 872,037.45/x
  3. Step 3: Cross multiply
    1,327,984.92x = 1,991,123.71 × 872,037.45
  4. Step 4: Simplify right side
    1,327,984.92x = 1,736,334,440,522.85
  5. Step 5: Solve for x
    x = 1,736,334,440,522.85/1,327,984.92
  6. Step 6: Final answer
    x = 1,307,495.60

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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.