Home / 1,428,434.27-1,971,269.40-783,848.83

Finding the Fourth Proportional to 1,428,434.27, 1,971,269.40 and 783,848.83

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Solution

The fourth proportional to 1,428,434.27, 1,971,269.40 and 783,848.83 is: 1,081,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,434.27 : 1,971,269.40 = 783,848.83 : x
  2. Step 2: Convert to fraction form
    1,428,434.27/1,971,269.40 = 783,848.83/x
  3. Step 3: Cross multiply
    1,428,434.27x = 1,971,269.40 × 783,848.83
  4. Step 4: Simplify right side
    1,428,434.27x = 1,545,177,212,804.80
  5. Step 5: Solve for x
    x = 1,545,177,212,804.80/1,428,434.27
  6. Step 6: Final answer
    x = 1,081,727.91

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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.