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Finding the Fourth Proportional to 885,808.36, 1,328,068.84 and 353,169.64

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Solution

The fourth proportional to 885,808.36, 1,328,068.84 and 353,169.64 is: 529,497.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,808.36 : 1,328,068.84 = 353,169.64 : x
  2. Step 2: Convert to fraction form
    885,808.36/1,328,068.84 = 353,169.64/x
  3. Step 3: Cross multiply
    885,808.36x = 1,328,068.84 × 353,169.64
  4. Step 4: Simplify right side
    885,808.36x = 469,033,594,118.02
  5. Step 5: Solve for x
    x = 469,033,594,118.02/885,808.36
  6. Step 6: Final answer
    x = 529,497.82

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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.