Home / 847,765.68-1,271,645.28-216,678.48

Finding the Fourth Proportional to 847,765.68, 1,271,645.28 and 216,678.48

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Solution

The fourth proportional to 847,765.68, 1,271,645.28 and 216,678.48 is: 325,016.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,765.68 : 1,271,645.28 = 216,678.48 : x
  2. Step 2: Convert to fraction form
    847,765.68/1,271,645.28 = 216,678.48/x
  3. Step 3: Cross multiply
    847,765.68x = 1,271,645.28 × 216,678.48
  4. Step 4: Simplify right side
    847,765.68x = 275,538,166,369.57
  5. Step 5: Solve for x
    x = 275,538,166,369.57/847,765.68
  6. Step 6: Final answer
    x = 325,016.89

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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.