Home / 1,189,903.54-1,785,564.48-431,804.16

Finding the Fourth Proportional to 1,189,903.54, 1,785,564.48 and 431,804.16

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Solution

The fourth proportional to 1,189,903.54, 1,785,564.48 and 431,804.16 is: 647,963.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,903.54 : 1,785,564.48 = 431,804.16 : x
  2. Step 2: Convert to fraction form
    1,189,903.54/1,785,564.48 = 431,804.16/x
  3. Step 3: Cross multiply
    1,189,903.54x = 1,785,564.48 × 431,804.16
  4. Step 4: Simplify right side
    1,189,903.54x = 771,014,170,412.24
  5. Step 5: Solve for x
    x = 771,014,170,412.24/1,189,903.54
  6. Step 6: Final answer
    x = 647,963.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.