Home / 1,384,476.67-1,910,673.70-772,748.78

Finding the Fourth Proportional to 1,384,476.67, 1,910,673.70 and 772,748.78

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Solution

The fourth proportional to 1,384,476.67, 1,910,673.70 and 772,748.78 is: 1,066,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,476.67 : 1,910,673.70 = 772,748.78 : x
  2. Step 2: Convert to fraction form
    1,384,476.67/1,910,673.70 = 772,748.78/x
  3. Step 3: Cross multiply
    1,384,476.67x = 1,910,673.70 × 772,748.78
  4. Step 4: Simplify right side
    1,384,476.67x = 1,476,470,759,167.85
  5. Step 5: Solve for x
    x = 1,476,470,759,167.85/1,384,476.67
  6. Step 6: Final answer
    x = 1,066,446.83

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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.