Home / 1,398,017.05-2,097,004.51-628,971.66

Finding the Fourth Proportional to 1,398,017.05, 2,097,004.51 and 628,971.66

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Solution

The fourth proportional to 1,398,017.05, 2,097,004.51 and 628,971.66 is: 943,448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,017.05 : 2,097,004.51 = 628,971.66 : x
  2. Step 2: Convert to fraction form
    1,398,017.05/2,097,004.51 = 628,971.66/x
  3. Step 3: Cross multiply
    1,398,017.05x = 2,097,004.51 × 628,971.66
  4. Step 4: Simplify right side
    1,398,017.05x = 1,318,956,407,682.19
  5. Step 5: Solve for x
    x = 1,318,956,407,682.19/1,398,017.05
  6. Step 6: Final answer
    x = 943,448.01

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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.