Home / 774,277.44-1,161,421.92-213,342.72

Finding the Fourth Proportional to 774,277.44, 1,161,421.92 and 213,342.72

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Solution

The fourth proportional to 774,277.44, 1,161,421.92 and 213,342.72 is: 320,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,277.44 : 1,161,421.92 = 213,342.72 : x
  2. Step 2: Convert to fraction form
    774,277.44/1,161,421.92 = 213,342.72/x
  3. Step 3: Cross multiply
    774,277.44x = 1,161,421.92 × 213,342.72
  4. Step 4: Simplify right side
    774,277.44x = 247,780,911,480.42
  5. Step 5: Solve for x
    x = 247,780,911,480.42/774,277.44
  6. Step 6: Final answer
    x = 320,015.67

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1.5x scale

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.