Home / 1,128,504.87-1,557,336.83-645,080.58

Finding the Fourth Proportional to 1,128,504.87, 1,557,336.83 and 645,080.58

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Solution

The fourth proportional to 1,128,504.87, 1,557,336.83 and 645,080.58 is: 890,211.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,504.87 : 1,557,336.83 = 645,080.58 : x
  2. Step 2: Convert to fraction form
    1,128,504.87/1,557,336.83 = 645,080.58/x
  3. Step 3: Cross multiply
    1,128,504.87x = 1,557,336.83 × 645,080.58
  4. Step 4: Simplify right side
    1,128,504.87x = 1,004,607,742,326.36
  5. Step 5: Solve for x
    x = 1,004,607,742,326.36/1,128,504.87
  6. Step 6: Final answer
    x = 890,211.26

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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.