Home / 1,278,408.51-1,764,192.64-697,643.13

Finding the Fourth Proportional to 1,278,408.51, 1,764,192.64 and 697,643.13

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Solution

The fourth proportional to 1,278,408.51, 1,764,192.64 and 697,643.13 is: 962,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,408.51 : 1,764,192.64 = 697,643.13 : x
  2. Step 2: Convert to fraction form
    1,278,408.51/1,764,192.64 = 697,643.13/x
  3. Step 3: Cross multiply
    1,278,408.51x = 1,764,192.64 × 697,643.13
  4. Step 4: Simplify right side
    1,278,408.51x = 1,230,776,875,292.56
  5. Step 5: Solve for x
    x = 1,230,776,875,292.56/1,278,408.51
  6. Step 6: Final answer
    x = 962,741.46

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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.