Home / 1,211,711.40-1,817,567.10-807,553.80

Finding the Fourth Proportional to 1,211,711.40, 1,817,567.10 and 807,553.80

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Solution

The fourth proportional to 1,211,711.40, 1,817,567.10 and 807,553.80 is: 1,211,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,711.40 : 1,817,567.10 = 807,553.80 : x
  2. Step 2: Convert to fraction form
    1,211,711.40/1,817,567.10 = 807,553.80/x
  3. Step 3: Cross multiply
    1,211,711.40x = 1,817,567.10 × 807,553.80
  4. Step 4: Simplify right side
    1,211,711.40x = 1,467,783,218,359.98
  5. Step 5: Solve for x
    x = 1,467,783,218,359.98/1,211,711.40
  6. Step 6: Final answer
    x = 1,211,330.70

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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.