Home / 1,261,093-1,740,302.10-688,131.40

Finding the Fourth Proportional to 1,261,093, 1,740,302.10 and 688,131.40

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Solution

The fourth proportional to 1,261,093, 1,740,302.10 and 688,131.40 is: 949,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,093 : 1,740,302.10 = 688,131.40 : x
  2. Step 2: Convert to fraction form
    1,261,093/1,740,302.10 = 688,131.40/x
  3. Step 3: Cross multiply
    1,261,093x = 1,740,302.10 × 688,131.40
  4. Step 4: Simplify right side
    1,261,093x = 1,197,556,520,495.94
  5. Step 5: Solve for x
    x = 1,197,556,520,495.94/1,261,093
  6. Step 6: Final answer
    x = 949,617.93

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1.5x scale

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.