Home / 1,207,828.14-1,666,802.25-663,999

Finding the Fourth Proportional to 1,207,828.14, 1,666,802.25 and 663,999

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Solution

The fourth proportional to 1,207,828.14, 1,666,802.25 and 663,999 is: 916,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,828.14 : 1,666,802.25 = 663,999 : x
  2. Step 2: Convert to fraction form
    1,207,828.14/1,666,802.25 = 663,999/x
  3. Step 3: Cross multiply
    1,207,828.14x = 1,666,802.25 × 663,999
  4. Step 4: Simplify right side
    1,207,828.14x = 1,106,755,027,197.75
  5. Step 5: Solve for x
    x = 1,106,755,027,197.75/1,207,828.14
  6. Step 6: Final answer
    x = 916,318.30

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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.