Home / 1,388,817.90-2,083,393.26-490,074

Finding the Fourth Proportional to 1,388,817.90, 2,083,393.26 and 490,074

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Solution

The fourth proportional to 1,388,817.90, 2,083,393.26 and 490,074 is: 735,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,817.90 : 2,083,393.26 = 490,074 : x
  2. Step 2: Convert to fraction form
    1,388,817.90/2,083,393.26 = 490,074/x
  3. Step 3: Cross multiply
    1,388,817.90x = 2,083,393.26 × 490,074
  4. Step 4: Simplify right side
    1,388,817.90x = 1,021,016,868,501.24
  5. Step 5: Solve for x
    x = 1,021,016,868,501.24/1,388,817.90
  6. Step 6: Final answer
    x = 735,169.72

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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.