Home / 1,242,328.98-1,714,403.80-783,739.78

Finding the Fourth Proportional to 1,242,328.98, 1,714,403.80 and 783,739.78

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Solution

The fourth proportional to 1,242,328.98, 1,714,403.80 and 783,739.78 is: 1,081,554.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,328.98 : 1,714,403.80 = 783,739.78 : x
  2. Step 2: Convert to fraction form
    1,242,328.98/1,714,403.80 = 783,739.78/x
  3. Step 3: Cross multiply
    1,242,328.98x = 1,714,403.80 × 783,739.78
  4. Step 4: Simplify right side
    1,242,328.98x = 1,343,646,457,043.16
  5. Step 5: Solve for x
    x = 1,343,646,457,043.16/1,242,328.98
  6. Step 6: Final answer
    x = 1,081,554.47

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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.