Home / 715,323.87-1,072,986.19-265,986.35

Finding the Fourth Proportional to 715,323.87, 1,072,986.19 and 265,986.35

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Solution

The fourth proportional to 715,323.87, 1,072,986.19 and 265,986.35 is: 398,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,323.87 : 1,072,986.19 = 265,986.35 : x
  2. Step 2: Convert to fraction form
    715,323.87/1,072,986.19 = 265,986.35/x
  3. Step 3: Cross multiply
    715,323.87x = 1,072,986.19 × 265,986.35
  4. Step 4: Simplify right side
    715,323.87x = 285,399,680,278.51
  5. Step 5: Solve for x
    x = 285,399,680,278.51/715,323.87
  6. Step 6: Final answer
    x = 398,979.67

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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.