Home / 631,036.64-870,826.20-344,556.56

Finding the Fourth Proportional to 631,036.64, 870,826.20 and 344,556.56

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Solution

The fourth proportional to 631,036.64, 870,826.20 and 344,556.56 is: 475,485.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,036.64 : 870,826.20 = 344,556.56 : x
  2. Step 2: Convert to fraction form
    631,036.64/870,826.20 = 344,556.56/x
  3. Step 3: Cross multiply
    631,036.64x = 870,826.20 × 344,556.56
  4. Step 4: Simplify right side
    631,036.64x = 300,048,879,829.87
  5. Step 5: Solve for x
    x = 300,048,879,829.87/631,036.64
  6. Step 6: Final answer
    x = 475,485.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.