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Finding the Fourth Proportional to 453,802.84, 680,805.78 and 138,284.44

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Solution

The fourth proportional to 453,802.84, 680,805.78 and 138,284.44 is: 207,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,802.84 : 680,805.78 = 138,284.44 : x
  2. Step 2: Convert to fraction form
    453,802.84/680,805.78 = 138,284.44/x
  3. Step 3: Cross multiply
    453,802.84x = 680,805.78 × 138,284.44
  4. Step 4: Simplify right side
    453,802.84x = 94,144,846,036.06
  5. Step 5: Solve for x
    x = 94,144,846,036.06/453,802.84
  6. Step 6: Final answer
    x = 207,457.60

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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.