Home / 2,781,572.77-3,837,347.67-1,678,388.87

Finding the Fourth Proportional to 2,781,572.77, 3,837,347.67 and 1,678,388.87

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Solution

The fourth proportional to 2,781,572.77, 3,837,347.67 and 1,678,388.87 is: 2,315,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,572.77 : 3,837,347.67 = 1,678,388.87 : x
  2. Step 2: Convert to fraction form
    2,781,572.77/3,837,347.67 = 1,678,388.87/x
  3. Step 3: Cross multiply
    2,781,572.77x = 3,837,347.67 × 1,678,388.87
  4. Step 4: Simplify right side
    2,781,572.77x = 6,440,561,600,461.69
  5. Step 5: Solve for x
    x = 6,440,561,600,461.69/2,781,572.77
  6. Step 6: Final answer
    x = 2,315,438.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.