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Finding the Fourth Proportional to 404,769.45, 607,048.32 and 120,383.42

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Solution

The fourth proportional to 404,769.45, 607,048.32 and 120,383.42 is: 180,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,769.45 : 607,048.32 = 120,383.42 : x
  2. Step 2: Convert to fraction form
    404,769.45/607,048.32 = 120,383.42/x
  3. Step 3: Cross multiply
    404,769.45x = 607,048.32 × 120,383.42
  4. Step 4: Simplify right side
    404,769.45x = 73,078,550,283.05
  5. Step 5: Solve for x
    x = 73,078,550,283.05/404,769.45
  6. Step 6: Final answer
    x = 180,543.64

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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.