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Finding the Fourth Proportional to 453,942.20, 680,913.30 and 404,953.40

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Solution

The fourth proportional to 453,942.20, 680,913.30 and 404,953.40 is: 607,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,942.20 : 680,913.30 = 404,953.40 : x
  2. Step 2: Convert to fraction form
    453,942.20/680,913.30 = 404,953.40/x
  3. Step 3: Cross multiply
    453,942.20x = 680,913.30 × 404,953.40
  4. Step 4: Simplify right side
    453,942.20x = 275,738,155,940.22
  5. Step 5: Solve for x
    x = 275,738,155,940.22/453,942.20
  6. Step 6: Final answer
    x = 607,430.10

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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.