Home / 1,212,751.80-1,819,127.70-413,913.60

Finding the Fourth Proportional to 1,212,751.80, 1,819,127.70 and 413,913.60

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Solution

The fourth proportional to 1,212,751.80, 1,819,127.70 and 413,913.60 is: 620,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,751.80 : 1,819,127.70 = 413,913.60 : x
  2. Step 2: Convert to fraction form
    1,212,751.80/1,819,127.70 = 413,913.60/x
  3. Step 3: Cross multiply
    1,212,751.80x = 1,819,127.70 × 413,913.60
  4. Step 4: Simplify right side
    1,212,751.80x = 752,961,695,166.72
  5. Step 5: Solve for x
    x = 752,961,695,166.72/1,212,751.80
  6. Step 6: Final answer
    x = 620,870.40

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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.