Home / 1,257,918.78-1,735,880.54-768,706.32

Finding the Fourth Proportional to 1,257,918.78, 1,735,880.54 and 768,706.32

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Solution

The fourth proportional to 1,257,918.78, 1,735,880.54 and 768,706.32 is: 1,060,785.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,918.78 : 1,735,880.54 = 768,706.32 : x
  2. Step 2: Convert to fraction form
    1,257,918.78/1,735,880.54 = 768,706.32/x
  3. Step 3: Cross multiply
    1,257,918.78x = 1,735,880.54 × 768,706.32
  4. Step 4: Simplify right side
    1,257,918.78x = 1,334,382,338,019.48
  5. Step 5: Solve for x
    x = 1,334,382,338,019.48/1,257,918.78
  6. Step 6: Final answer
    x = 1,060,785.77

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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.