Home / 1,287,705.61-1,777,029.34-706,914.28

Finding the Fourth Proportional to 1,287,705.61, 1,777,029.34 and 706,914.28

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Solution

The fourth proportional to 1,287,705.61, 1,777,029.34 and 706,914.28 is: 975,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,705.61 : 1,777,029.34 = 706,914.28 : x
  2. Step 2: Convert to fraction form
    1,287,705.61/1,777,029.34 = 706,914.28/x
  3. Step 3: Cross multiply
    1,287,705.61x = 1,777,029.34 × 706,914.28
  4. Step 4: Simplify right side
    1,287,705.61x = 1,256,207,416,424.98
  5. Step 5: Solve for x
    x = 1,256,207,416,424.98/1,287,705.61
  6. Step 6: Final answer
    x = 975,539.29

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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.