Home / 1,261,075.64-1,740,326.39-688,147.25

Finding the Fourth Proportional to 1,261,075.64, 1,740,326.39 and 688,147.25

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Solution

The fourth proportional to 1,261,075.64, 1,740,326.39 and 688,147.25 is: 949,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,075.64 : 1,740,326.39 = 688,147.25 : x
  2. Step 2: Convert to fraction form
    1,261,075.64/1,740,326.39 = 688,147.25/x
  3. Step 3: Cross multiply
    1,261,075.64x = 1,740,326.39 × 688,147.25
  4. Step 4: Simplify right side
    1,261,075.64x = 1,197,600,816,345.34
  5. Step 5: Solve for x
    x = 1,197,600,816,345.34/1,261,075.64
  6. Step 6: Final answer
    x = 949,666.13

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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.