Home / 1,157,128.23-1,596,715.39-640,868.60

Finding the Fourth Proportional to 1,157,128.23, 1,596,715.39 and 640,868.60

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Solution

The fourth proportional to 1,157,128.23, 1,596,715.39 and 640,868.60 is: 884,331.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,128.23 : 1,596,715.39 = 640,868.60 : x
  2. Step 2: Convert to fraction form
    1,157,128.23/1,596,715.39 = 640,868.60/x
  3. Step 3: Cross multiply
    1,157,128.23x = 1,596,715.39 × 640,868.60
  4. Step 4: Simplify right side
    1,157,128.23x = 1,023,284,745,399.83
  5. Step 5: Solve for x
    x = 1,023,284,745,399.83/1,157,128.23
  6. Step 6: Final answer
    x = 884,331.33

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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.