Home / 1,257,284.51-1,735,090.25-774,128.42

Finding the Fourth Proportional to 1,257,284.51, 1,735,090.25 and 774,128.42

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Solution

The fourth proportional to 1,257,284.51, 1,735,090.25 and 774,128.42 is: 1,068,320.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,284.51 : 1,735,090.25 = 774,128.42 : x
  2. Step 2: Convert to fraction form
    1,257,284.51/1,735,090.25 = 774,128.42/x
  3. Step 3: Cross multiply
    1,257,284.51x = 1,735,090.25 × 774,128.42
  4. Step 4: Simplify right side
    1,257,284.51x = 1,343,182,661,243.81
  5. Step 5: Solve for x
    x = 1,343,182,661,243.81/1,257,284.51
  6. Step 6: Final answer
    x = 1,068,320.38

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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.