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Finding the Fourth Proportional to 802,668.78, 1,204,068.69 and 403,104.06

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Solution

The fourth proportional to 802,668.78, 1,204,068.69 and 403,104.06 is: 604,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,668.78 : 1,204,068.69 = 403,104.06 : x
  2. Step 2: Convert to fraction form
    802,668.78/1,204,068.69 = 403,104.06/x
  3. Step 3: Cross multiply
    802,668.78x = 1,204,068.69 × 403,104.06
  4. Step 4: Simplify right side
    802,668.78x = 485,364,977,457.88
  5. Step 5: Solve for x
    x = 485,364,977,457.88/802,668.78
  6. Step 6: Final answer
    x = 604,688.99

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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.