Home / 877,147.03-1,315,719.78-330,141.64

Finding the Fourth Proportional to 877,147.03, 1,315,719.78 and 330,141.64

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Solution

The fourth proportional to 877,147.03, 1,315,719.78 and 330,141.64 is: 495,212.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,147.03 : 1,315,719.78 = 330,141.64 : x
  2. Step 2: Convert to fraction form
    877,147.03/1,315,719.78 = 330,141.64/x
  3. Step 3: Cross multiply
    877,147.03x = 1,315,719.78 × 330,141.64
  4. Step 4: Simplify right side
    877,147.03x = 434,373,884,298.93
  5. Step 5: Solve for x
    x = 434,373,884,298.93/877,147.03
  6. Step 6: Final answer
    x = 495,212.17

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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.