Home / 1,428,447.93-1,971,252.33-783,878.88

Finding the Fourth Proportional to 1,428,447.93, 1,971,252.33 and 783,878.88

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Solution

The fourth proportional to 1,428,447.93, 1,971,252.33 and 783,878.88 is: 1,081,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,447.93 : 1,971,252.33 = 783,878.88 : x
  2. Step 2: Convert to fraction form
    1,428,447.93/1,971,252.33 = 783,878.88/x
  3. Step 3: Cross multiply
    1,428,447.93x = 1,971,252.33 × 783,878.88
  4. Step 4: Simplify right side
    1,428,447.93x = 1,545,223,068,637.79
  5. Step 5: Solve for x
    x = 1,545,223,068,637.79/1,428,447.93
  6. Step 6: Final answer
    x = 1,081,749.66

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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.