Home / 690,036.32-1,034,704.44-315,738.56

Finding the Fourth Proportional to 690,036.32, 1,034,704.44 and 315,738.56

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Solution

The fourth proportional to 690,036.32, 1,034,704.44 and 315,738.56 is: 473,447.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,036.32 : 1,034,704.44 = 315,738.56 : x
  2. Step 2: Convert to fraction form
    690,036.32/1,034,704.44 = 315,738.56/x
  3. Step 3: Cross multiply
    690,036.32x = 1,034,704.44 × 315,738.56
  4. Step 4: Simplify right side
    690,036.32x = 326,696,089,911.21
  5. Step 5: Solve for x
    x = 326,696,089,911.21/690,036.32
  6. Step 6: Final answer
    x = 473,447.67

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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.