Home / 646,455.28-892,170.32-359,975.28

Finding the Fourth Proportional to 646,455.28, 892,170.32 and 359,975.28

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Solution

The fourth proportional to 646,455.28, 892,170.32 and 359,975.28 is: 496,800.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,455.28 : 892,170.32 = 359,975.28 : x
  2. Step 2: Convert to fraction form
    646,455.28/892,170.32 = 359,975.28/x
  3. Step 3: Cross multiply
    646,455.28x = 892,170.32 × 359,975.28
  4. Step 4: Simplify right side
    646,455.28x = 321,159,260,749.69
  5. Step 5: Solve for x
    x = 321,159,260,749.69/646,455.28
  6. Step 6: Final answer
    x = 496,800.43

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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.