Home / 1,188,148.95-1,782,004.73-738,064.35

Finding the Fourth Proportional to 1,188,148.95, 1,782,004.73 and 738,064.35

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Solution

The fourth proportional to 1,188,148.95, 1,782,004.73 and 738,064.35 is: 1,106,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,148.95 : 1,782,004.73 = 738,064.35 : x
  2. Step 2: Convert to fraction form
    1,188,148.95/1,782,004.73 = 738,064.35/x
  3. Step 3: Cross multiply
    1,188,148.95x = 1,782,004.73 × 738,064.35
  4. Step 4: Simplify right side
    1,188,148.95x = 1,315,234,159,054.05
  5. Step 5: Solve for x
    x = 1,315,234,159,054.05/1,188,148.95
  6. Step 6: Final answer
    x = 1,106,960.67

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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.