Home / 1,257,285.51-1,735,091.63-774,129.42

Finding the Fourth Proportional to 1,257,285.51, 1,735,091.63 and 774,129.42

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Solution

The fourth proportional to 1,257,285.51, 1,735,091.63 and 774,129.42 is: 1,068,321.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,285.51 : 1,735,091.63 = 774,129.42 : x
  2. Step 2: Convert to fraction form
    1,257,285.51/1,735,091.63 = 774,129.42/x
  3. Step 3: Cross multiply
    1,257,285.51x = 1,735,091.63 × 774,129.42
  4. Step 4: Simplify right side
    1,257,285.51x = 1,343,185,477,178.75
  5. Step 5: Solve for x
    x = 1,343,185,477,178.75/1,257,285.51
  6. Step 6: Final answer
    x = 1,068,321.77

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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.