Home / 1,268,107.51-1,749,801.48-771,137.88

Finding the Fourth Proportional to 1,268,107.51, 1,749,801.48 and 771,137.88

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Solution

The fourth proportional to 1,268,107.51, 1,749,801.48 and 771,137.88 is: 1,064,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,107.51 : 1,749,801.48 = 771,137.88 : x
  2. Step 2: Convert to fraction form
    1,268,107.51/1,749,801.48 = 771,137.88/x
  3. Step 3: Cross multiply
    1,268,107.51x = 1,749,801.48 × 771,137.88
  4. Step 4: Simplify right side
    1,268,107.51x = 1,349,338,210,269.82
  5. Step 5: Solve for x
    x = 1,349,338,210,269.82/1,268,107.51
  6. Step 6: Final answer
    x = 1,064,056.63

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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.