Home / 1,261,075.23-1,740,325.82-688,146.84

Finding the Fourth Proportional to 1,261,075.23, 1,740,325.82 and 688,146.84

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Solution

The fourth proportional to 1,261,075.23, 1,740,325.82 and 688,146.84 is: 949,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,075.23 : 1,740,325.82 = 688,146.84 : x
  2. Step 2: Convert to fraction form
    1,261,075.23/1,740,325.82 = 688,146.84/x
  3. Step 3: Cross multiply
    1,261,075.23x = 1,740,325.82 × 688,146.84
  4. Step 4: Simplify right side
    1,261,075.23x = 1,197,599,719,674.59
  5. Step 5: Solve for x
    x = 1,197,599,719,674.59/1,261,075.23
  6. Step 6: Final answer
    x = 949,665.56

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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.