Home / 1,261,358.53-1,891,969.96-621,023.91

Finding the Fourth Proportional to 1,261,358.53, 1,891,969.96 and 621,023.91

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Solution

The fourth proportional to 1,261,358.53, 1,891,969.96 and 621,023.91 is: 931,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,358.53 : 1,891,969.96 = 621,023.91 : x
  2. Step 2: Convert to fraction form
    1,261,358.53/1,891,969.96 = 621,023.91/x
  3. Step 3: Cross multiply
    1,261,358.53x = 1,891,969.96 × 621,023.91
  4. Step 4: Simplify right side
    1,261,358.53x = 1,174,958,582,161.74
  5. Step 5: Solve for x
    x = 1,174,958,582,161.74/1,261,358.53
  6. Step 6: Final answer
    x = 931,502.47

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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.