Home / 1,245,289.40-1,867,934.10-403,830.20

Finding the Fourth Proportional to 1,245,289.40, 1,867,934.10 and 403,830.20

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Solution

The fourth proportional to 1,245,289.40, 1,867,934.10 and 403,830.20 is: 605,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,289.40 : 1,867,934.10 = 403,830.20 : x
  2. Step 2: Convert to fraction form
    1,245,289.40/1,867,934.10 = 403,830.20/x
  3. Step 3: Cross multiply
    1,245,289.40x = 1,867,934.10 × 403,830.20
  4. Step 4: Simplify right side
    1,245,289.40x = 754,328,201,189.82
  5. Step 5: Solve for x
    x = 754,328,201,189.82/1,245,289.40
  6. Step 6: Final answer
    x = 605,745.30

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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.