Home / 877,146.53-1,315,719.03-330,141.14

Finding the Fourth Proportional to 877,146.53, 1,315,719.03 and 330,141.14

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Solution

The fourth proportional to 877,146.53, 1,315,719.03 and 330,141.14 is: 495,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,146.53 : 1,315,719.03 = 330,141.14 : x
  2. Step 2: Convert to fraction form
    877,146.53/1,315,719.03 = 330,141.14/x
  3. Step 3: Cross multiply
    877,146.53x = 1,315,719.03 × 330,141.14
  4. Step 4: Simplify right side
    877,146.53x = 434,372,975,750.23
  5. Step 5: Solve for x
    x = 434,372,975,750.23/877,146.53
  6. Step 6: Final answer
    x = 495,211.42

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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.