Home / 1,286,124.75-1,774,724.22-742,435.70

Finding the Fourth Proportional to 1,286,124.75, 1,774,724.22 and 742,435.70

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Solution

The fourth proportional to 1,286,124.75, 1,774,724.22 and 742,435.70 is: 1,024,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,124.75 : 1,774,724.22 = 742,435.70 : x
  2. Step 2: Convert to fraction form
    1,286,124.75/1,774,724.22 = 742,435.70/x
  3. Step 3: Cross multiply
    1,286,124.75x = 1,774,724.22 × 742,435.70
  4. Step 4: Simplify right side
    1,286,124.75x = 1,317,618,609,709.03
  5. Step 5: Solve for x
    x = 1,317,618,609,709.03/1,286,124.75
  6. Step 6: Final answer
    x = 1,024,487.41

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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.