Home / 1,261,302.88-1,740,638.70-717,424.72

Finding the Fourth Proportional to 1,261,302.88, 1,740,638.70 and 717,424.72

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Solution

The fourth proportional to 1,261,302.88, 1,740,638.70 and 717,424.72 is: 990,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,302.88 : 1,740,638.70 = 717,424.72 : x
  2. Step 2: Convert to fraction form
    1,261,302.88/1,740,638.70 = 717,424.72/x
  3. Step 3: Cross multiply
    1,261,302.88x = 1,740,638.70 × 717,424.72
  4. Step 4: Simplify right side
    1,261,302.88x = 1,248,777,231,968.66
  5. Step 5: Solve for x
    x = 1,248,777,231,968.66/1,261,302.88
  6. Step 6: Final answer
    x = 990,069.28

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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.