Home / 1,428,331.68-1,971,127.44-783,714.24

Finding the Fourth Proportional to 1,428,331.68, 1,971,127.44 and 783,714.24

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Solution

The fourth proportional to 1,428,331.68, 1,971,127.44 and 783,714.24 is: 1,081,541.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,331.68 : 1,971,127.44 = 783,714.24 : x
  2. Step 2: Convert to fraction form
    1,428,331.68/1,971,127.44 = 783,714.24/x
  3. Step 3: Cross multiply
    1,428,331.68x = 1,971,127.44 × 783,714.24
  4. Step 4: Simplify right side
    1,428,331.68x = 1,544,800,643,582.75
  5. Step 5: Solve for x
    x = 1,544,800,643,582.75/1,428,331.68
  6. Step 6: Final answer
    x = 1,081,541.96

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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.