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Finding the Fourth Proportional to 1,339,642, 1,848,735.12 and 736,030

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Solution

The fourth proportional to 1,339,642, 1,848,735.12 and 736,030 is: 1,015,737.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,642 : 1,848,735.12 = 736,030 : x
  2. Step 2: Convert to fraction form
    1,339,642/1,848,735.12 = 736,030/x
  3. Step 3: Cross multiply
    1,339,642x = 1,848,735.12 × 736,030
  4. Step 4: Simplify right side
    1,339,642x = 1,360,724,510,373.60
  5. Step 5: Solve for x
    x = 1,360,724,510,373.60/1,339,642
  6. Step 6: Final answer
    x = 1,015,737.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.