Home / 1,428,432.77-1,971,267.33-783,847.33

Finding the Fourth Proportional to 1,428,432.77, 1,971,267.33 and 783,847.33

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Solution

The fourth proportional to 1,428,432.77, 1,971,267.33 and 783,847.33 is: 1,081,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,432.77 : 1,971,267.33 = 783,847.33 : x
  2. Step 2: Convert to fraction form
    1,428,432.77/1,971,267.33 = 783,847.33/x
  3. Step 3: Cross multiply
    1,428,432.77x = 1,971,267.33 × 783,847.33
  4. Step 4: Simplify right side
    1,428,432.77x = 1,545,172,631,347.99
  5. Step 5: Solve for x
    x = 1,545,172,631,347.99/1,428,432.77
  6. Step 6: Final answer
    x = 1,081,725.83

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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.