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Finding the Fourth Proportional to 404,426.20, 607,805.70 and 353,104.60

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Solution

The fourth proportional to 404,426.20, 607,805.70 and 353,104.60 is: 530,675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,426.20 : 607,805.70 = 353,104.60 : x
  2. Step 2: Convert to fraction form
    404,426.20/607,805.70 = 353,104.60/x
  3. Step 3: Cross multiply
    404,426.20x = 607,805.70 × 353,104.60
  4. Step 4: Simplify right side
    404,426.20x = 214,618,988,576.22
  5. Step 5: Solve for x
    x = 214,618,988,576.22/404,426.20
  6. Step 6: Final answer
    x = 530,675.28

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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.