Home / 1,261,075.88-1,740,326.72-688,147.48

Finding the Fourth Proportional to 1,261,075.88, 1,740,326.72 and 688,147.48

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Solution

The fourth proportional to 1,261,075.88, 1,740,326.72 and 688,147.48 is: 949,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,075.88 : 1,740,326.72 = 688,147.48 : x
  2. Step 2: Convert to fraction form
    1,261,075.88/1,740,326.72 = 688,147.48/x
  3. Step 3: Cross multiply
    1,261,075.88x = 1,740,326.72 × 688,147.48
  4. Step 4: Simplify right side
    1,261,075.88x = 1,197,601,446,744.67
  5. Step 5: Solve for x
    x = 1,197,601,446,744.67/1,261,075.88
  6. Step 6: Final answer
    x = 949,666.44

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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.