Home / 1,312,323.71-1,811,006.81-708,711.71

Finding the Fourth Proportional to 1,312,323.71, 1,811,006.81 and 708,711.71

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Solution

The fourth proportional to 1,312,323.71, 1,811,006.81 and 708,711.71 is: 978,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,323.71 : 1,811,006.81 = 708,711.71 : x
  2. Step 2: Convert to fraction form
    1,312,323.71/1,811,006.81 = 708,711.71/x
  3. Step 3: Cross multiply
    1,312,323.71x = 1,811,006.81 × 708,711.71
  4. Step 4: Simplify right side
    1,312,323.71x = 1,283,481,733,382.73
  5. Step 5: Solve for x
    x = 1,283,481,733,382.73/1,312,323.71
  6. Step 6: Final answer
    x = 978,022.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.