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Finding the Fourth Proportional to 440,987.09, 608,748.38 and 297,940.88

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Solution

The fourth proportional to 440,987.09, 608,748.38 and 297,940.88 is: 411,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,987.09 : 608,748.38 = 297,940.88 : x
  2. Step 2: Convert to fraction form
    440,987.09/608,748.38 = 297,940.88/x
  3. Step 3: Cross multiply
    440,987.09x = 608,748.38 × 297,940.88
  4. Step 4: Simplify right side
    440,987.09x = 181,371,029,185.22
  5. Step 5: Solve for x
    x = 181,371,029,185.22/440,987.09
  6. Step 6: Final answer
    x = 411,284.22

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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.