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Finding the Fourth Proportional to 608,387.38, 911,853.88 and 283,738.16

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Solution

The fourth proportional to 608,387.38, 911,853.88 and 283,738.16 is: 425,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,387.38 : 911,853.88 = 283,738.16 : x
  2. Step 2: Convert to fraction form
    608,387.38/911,853.88 = 283,738.16/x
  3. Step 3: Cross multiply
    608,387.38x = 911,853.88 × 283,738.16
  4. Step 4: Simplify right side
    608,387.38x = 258,727,743,670.35
  5. Step 5: Solve for x
    x = 258,727,743,670.35/608,387.38
  6. Step 6: Final answer
    x = 425,268.10

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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.