Home / 3,897,507.44-5,378,465.40-2,178,830

Finding the Fourth Proportional to 3,897,507.44, 5,378,465.40 and 2,178,830

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Solution

The fourth proportional to 3,897,507.44, 5,378,465.40 and 2,178,830 is: 3,006,732.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897,507.44 : 5,378,465.40 = 2,178,830 : x
  2. Step 2: Convert to fraction form
    3,897,507.44/5,378,465.40 = 2,178,830/x
  3. Step 3: Cross multiply
    3,897,507.44x = 5,378,465.40 × 2,178,830
  4. Step 4: Simplify right side
    3,897,507.44x = 11,718,761,767,482
  5. Step 5: Solve for x
    x = 11,718,761,767,482/3,897,507.44
  6. Step 6: Final answer
    x = 3,006,732.37

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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.