Home / 1,903,120.90-2,853,969.92-765,498.67

Finding the Fourth Proportional to 1,903,120.90, 2,853,969.92 and 765,498.67

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Solution

The fourth proportional to 1,903,120.90, 2,853,969.92 and 765,498.67 is: 1,147,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903,120.90 : 2,853,969.92 = 765,498.67 : x
  2. Step 2: Convert to fraction form
    1,903,120.90/2,853,969.92 = 765,498.67/x
  3. Step 3: Cross multiply
    1,903,120.90x = 2,853,969.92 × 765,498.67
  4. Step 4: Simplify right side
    1,903,120.90x = 2,184,710,177,980.01
  5. Step 5: Solve for x
    x = 2,184,710,177,980.01/1,903,120.90
  6. Step 6: Final answer
    x = 1,147,961.84

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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.