Home / 1,138,671.90-1,571,400.63-622,454.31

Finding the Fourth Proportional to 1,138,671.90, 1,571,400.63 and 622,454.31

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Solution

The fourth proportional to 1,138,671.90, 1,571,400.63 and 622,454.31 is: 859,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,671.90 : 1,571,400.63 = 622,454.31 : x
  2. Step 2: Convert to fraction form
    1,138,671.90/1,571,400.63 = 622,454.31/x
  3. Step 3: Cross multiply
    1,138,671.90x = 1,571,400.63 × 622,454.31
  4. Step 4: Simplify right side
    1,138,671.90x = 978,125,094,880.22
  5. Step 5: Solve for x
    x = 978,125,094,880.22/1,138,671.90
  6. Step 6: Final answer
    x = 859,005.21

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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.