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Finding the Fourth Proportional to 646,955.96, 892,787.34 and 360,469.88

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Solution

The fourth proportional to 646,955.96, 892,787.34 and 360,469.88 is: 497,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,955.96 : 892,787.34 = 360,469.88 : x
  2. Step 2: Convert to fraction form
    646,955.96/892,787.34 = 360,469.88/x
  3. Step 3: Cross multiply
    646,955.96x = 892,787.34 × 360,469.88
  4. Step 4: Simplify right side
    646,955.96x = 321,822,945,315.32
  5. Step 5: Solve for x
    x = 321,822,945,315.32/646,955.96
  6. Step 6: Final answer
    x = 497,441.81

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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.