Home / 2,686,707.69-4,031,636.18-1,927,731.21

Finding the Fourth Proportional to 2,686,707.69, 4,031,636.18 and 1,927,731.21

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Solution

The fourth proportional to 2,686,707.69, 4,031,636.18 and 1,927,731.21 is: 2,892,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,707.69 : 4,031,636.18 = 1,927,731.21 : x
  2. Step 2: Convert to fraction form
    2,686,707.69/4,031,636.18 = 1,927,731.21/x
  3. Step 3: Cross multiply
    2,686,707.69x = 4,031,636.18 × 1,927,731.21
  4. Step 4: Simplify right side
    2,686,707.69x = 7,771,910,881,912.52
  5. Step 5: Solve for x
    x = 7,771,910,881,912.52/2,686,707.69
  6. Step 6: Final answer
    x = 2,892,726.63

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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.