Home / 1,239,812.40-1,859,891.40-529,834.80

Finding the Fourth Proportional to 1,239,812.40, 1,859,891.40 and 529,834.80

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Solution

The fourth proportional to 1,239,812.40, 1,859,891.40 and 529,834.80 is: 794,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,812.40 : 1,859,891.40 = 529,834.80 : x
  2. Step 2: Convert to fraction form
    1,239,812.40/1,859,891.40 = 529,834.80/x
  3. Step 3: Cross multiply
    1,239,812.40x = 1,859,891.40 × 529,834.80
  4. Step 4: Simplify right side
    1,239,812.40x = 985,435,187,940.72
  5. Step 5: Solve for x
    x = 985,435,187,940.72/1,239,812.40
  6. Step 6: Final answer
    x = 794,826.05

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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.