Home / 1,213,643.10-1,821,501.45-540,759.90

Finding the Fourth Proportional to 1,213,643.10, 1,821,501.45 and 540,759.90

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Solution

The fourth proportional to 1,213,643.10, 1,821,501.45 and 540,759.90 is: 811,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,643.10 : 1,821,501.45 = 540,759.90 : x
  2. Step 2: Convert to fraction form
    1,213,643.10/1,821,501.45 = 540,759.90/x
  3. Step 3: Cross multiply
    1,213,643.10x = 1,821,501.45 × 540,759.90
  4. Step 4: Simplify right side
    1,213,643.10x = 984,994,941,951.86
  5. Step 5: Solve for x
    x = 984,994,941,951.86/1,213,643.10
  6. Step 6: Final answer
    x = 811,601.81

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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.