Home / 1,212,984.60-1,820,513.70-540,101.40

Finding the Fourth Proportional to 1,212,984.60, 1,820,513.70 and 540,101.40

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Solution

The fourth proportional to 1,212,984.60, 1,820,513.70 and 540,101.40 is: 810,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,984.60 : 1,820,513.70 = 540,101.40 : x
  2. Step 2: Convert to fraction form
    1,212,984.60/1,820,513.70 = 540,101.40/x
  3. Step 3: Cross multiply
    1,212,984.60x = 1,820,513.70 × 540,101.40
  4. Step 4: Simplify right side
    1,212,984.60x = 983,261,998,089.18
  5. Step 5: Solve for x
    x = 983,261,998,089.18/1,212,984.60
  6. Step 6: Final answer
    x = 810,613.75

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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.