Home / 1,859,628.70-2,788,359.13-721,060.71

Finding the Fourth Proportional to 1,859,628.70, 2,788,359.13 and 721,060.71

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Solution

The fourth proportional to 1,859,628.70, 2,788,359.13 and 721,060.71 is: 1,081,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,628.70 : 2,788,359.13 = 721,060.71 : x
  2. Step 2: Convert to fraction form
    1,859,628.70/2,788,359.13 = 721,060.71/x
  3. Step 3: Cross multiply
    1,859,628.70x = 2,788,359.13 × 721,060.71
  4. Step 4: Simplify right side
    1,859,628.70x = 2,010,576,214,012.78
  5. Step 5: Solve for x
    x = 2,010,576,214,012.78/1,859,628.70
  6. Step 6: Final answer
    x = 1,081,170.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.