Home / 3,315,373.70-4,973,060.81-919,218.40

Finding the Fourth Proportional to 3,315,373.70, 4,973,060.81 and 919,218.40

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Solution

The fourth proportional to 3,315,373.70, 4,973,060.81 and 919,218.40 is: 1,378,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,373.70 : 4,973,060.81 = 919,218.40 : x
  2. Step 2: Convert to fraction form
    3,315,373.70/4,973,060.81 = 919,218.40/x
  3. Step 3: Cross multiply
    3,315,373.70x = 4,973,060.81 × 919,218.40
  4. Step 4: Simplify right side
    3,315,373.70x = 4,571,328,990,736.30
  5. Step 5: Solve for x
    x = 4,571,328,990,736.30/3,315,373.70
  6. Step 6: Final answer
    x = 1,378,827.67

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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.