Home / 1,855,478.75-2,781,275.94-776,609.78

Finding the Fourth Proportional to 1,855,478.75, 2,781,275.94 and 776,609.78

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Solution

The fourth proportional to 1,855,478.75, 2,781,275.94 and 776,609.78 is: 1,164,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,478.75 : 2,781,275.94 = 776,609.78 : x
  2. Step 2: Convert to fraction form
    1,855,478.75/2,781,275.94 = 776,609.78/x
  3. Step 3: Cross multiply
    1,855,478.75x = 2,781,275.94 × 776,609.78
  4. Step 4: Simplify right side
    1,855,478.75x = 2,159,966,081,976.31
  5. Step 5: Solve for x
    x = 2,159,966,081,976.31/1,855,478.75
  6. Step 6: Final answer
    x = 1,164,101.77

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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.