Home / 1,292,490.36-1,783,579.16-740,810.60

Finding the Fourth Proportional to 1,292,490.36, 1,783,579.16 and 740,810.60

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Solution

The fourth proportional to 1,292,490.36, 1,783,579.16 and 740,810.60 is: 1,022,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,490.36 : 1,783,579.16 = 740,810.60 : x
  2. Step 2: Convert to fraction form
    1,292,490.36/1,783,579.16 = 740,810.60/x
  3. Step 3: Cross multiply
    1,292,490.36x = 1,783,579.16 × 740,810.60
  4. Step 4: Simplify right side
    1,292,490.36x = 1,321,294,335,045.15
  5. Step 5: Solve for x
    x = 1,321,294,335,045.15/1,292,490.36
  6. Step 6: Final answer
    x = 1,022,285.64

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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.