Home / 1,257,317.26-1,735,431.54-774,287.40

Finding the Fourth Proportional to 1,257,317.26, 1,735,431.54 and 774,287.40

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Solution

The fourth proportional to 1,257,317.26, 1,735,431.54 and 774,287.40 is: 1,068,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,317.26 : 1,735,431.54 = 774,287.40 : x
  2. Step 2: Convert to fraction form
    1,257,317.26/1,735,431.54 = 774,287.40/x
  3. Step 3: Cross multiply
    1,257,317.26x = 1,735,431.54 × 774,287.40
  4. Step 4: Simplify right side
    1,257,317.26x = 1,343,722,774,984.60
  5. Step 5: Solve for x
    x = 1,343,722,774,984.60/1,257,317.26
  6. Step 6: Final answer
    x = 1,068,722.13

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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.