Home / 1,344,605.32-1,855,647.12-821,539.86

Finding the Fourth Proportional to 1,344,605.32, 1,855,647.12 and 821,539.86

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Solution

The fourth proportional to 1,344,605.32, 1,855,647.12 and 821,539.86 is: 1,133,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,605.32 : 1,855,647.12 = 821,539.86 : x
  2. Step 2: Convert to fraction form
    1,344,605.32/1,855,647.12 = 821,539.86/x
  3. Step 3: Cross multiply
    1,344,605.32x = 1,855,647.12 × 821,539.86
  4. Step 4: Simplify right side
    1,344,605.32x = 1,524,488,075,174.20
  5. Step 5: Solve for x
    x = 1,524,488,075,174.20/1,344,605.32
  6. Step 6: Final answer
    x = 1,133,781.08

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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.