Home / 1,312,323.72-1,811,006.87-708,711.72

Finding the Fourth Proportional to 1,312,323.72, 1,811,006.87 and 708,711.72

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Solution

The fourth proportional to 1,312,323.72, 1,811,006.87 and 708,711.72 is: 978,022.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,323.72 : 1,811,006.87 = 708,711.72 : x
  2. Step 2: Convert to fraction form
    1,312,323.72/1,811,006.87 = 708,711.72/x
  3. Step 3: Cross multiply
    1,312,323.72x = 1,811,006.87 × 708,711.72
  4. Step 4: Simplify right side
    1,312,323.72x = 1,283,481,793,769.52
  5. Step 5: Solve for x
    x = 1,283,481,793,769.52/1,312,323.72
  6. Step 6: Final answer
    x = 978,022.25

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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.