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Finding the Fourth Proportional to 440,685, 608,331.33 and 297,638.80

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Solution

The fourth proportional to 440,685, 608,331.33 and 297,638.80 is: 410,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,685 : 608,331.33 = 297,638.80 : x
  2. Step 2: Convert to fraction form
    440,685/608,331.33 = 297,638.80/x
  3. Step 3: Cross multiply
    440,685x = 608,331.33 × 297,638.80
  4. Step 4: Simplify right side
    440,685x = 181,063,005,542.78
  5. Step 5: Solve for x
    x = 181,063,005,542.78/440,685
  6. Step 6: Final answer
    x = 410,867.19

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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.