Home / 984,254.40-1,478,131.20-718,315.20

Finding the Fourth Proportional to 984,254.40, 1,478,131.20 and 718,315.20

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Solution

The fourth proportional to 984,254.40, 1,478,131.20 and 718,315.20 is: 1,078,749.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,254.40 : 1,478,131.20 = 718,315.20 : x
  2. Step 2: Convert to fraction form
    984,254.40/1,478,131.20 = 718,315.20/x
  3. Step 3: Cross multiply
    984,254.40x = 1,478,131.20 × 718,315.20
  4. Step 4: Simplify right side
    984,254.40x = 1,061,764,108,554.24
  5. Step 5: Solve for x
    x = 1,061,764,108,554.24/984,254.40
  6. Step 6: Final answer
    x = 1,078,749.67

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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.