Home / 1,781,837.29-2,672,103.94-644,326.65

Finding the Fourth Proportional to 1,781,837.29, 2,672,103.94 and 644,326.65

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Solution

The fourth proportional to 1,781,837.29, 2,672,103.94 and 644,326.65 is: 966,254.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,837.29 : 2,672,103.94 = 644,326.65 : x
  2. Step 2: Convert to fraction form
    1,781,837.29/2,672,103.94 = 644,326.65/x
  3. Step 3: Cross multiply
    1,781,837.29x = 2,672,103.94 × 644,326.65
  4. Step 4: Simplify right side
    1,781,837.29x = 1,721,707,778,501.18
  5. Step 5: Solve for x
    x = 1,721,707,778,501.18/1,781,837.29
  6. Step 6: Final answer
    x = 966,254.21

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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.