Home / 2,638,012.69-3,956,307.11-931,931.38

Finding the Fourth Proportional to 2,638,012.69, 3,956,307.11 and 931,931.38

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Solution

The fourth proportional to 2,638,012.69, 3,956,307.11 and 931,931.38 is: 1,397,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,012.69 : 3,956,307.11 = 931,931.38 : x
  2. Step 2: Convert to fraction form
    2,638,012.69/3,956,307.11 = 931,931.38/x
  3. Step 3: Cross multiply
    2,638,012.69x = 3,956,307.11 × 931,931.38
  4. Step 4: Simplify right side
    2,638,012.69x = 3,687,006,744,726.11
  5. Step 5: Solve for x
    x = 3,687,006,744,726.11/2,638,012.69
  6. Step 6: Final answer
    x = 1,397,645.57

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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.