Home / 877,148.03-1,315,721.27-330,142.64

Finding the Fourth Proportional to 877,148.03, 1,315,721.27 and 330,142.64

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Solution

The fourth proportional to 877,148.03, 1,315,721.27 and 330,142.64 is: 495,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,148.03 : 1,315,721.27 = 330,142.64 : x
  2. Step 2: Convert to fraction form
    877,148.03/1,315,721.27 = 330,142.64/x
  3. Step 3: Cross multiply
    877,148.03x = 1,315,721.27 × 330,142.64
  4. Step 4: Simplify right side
    877,148.03x = 434,375,693,581.95
  5. Step 5: Solve for x
    x = 434,375,693,581.95/877,148.03
  6. Step 6: Final answer
    x = 495,213.67

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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.