Home / 2,897,726.40-4,346,589.60-768,139.20

Finding the Fourth Proportional to 2,897,726.40, 4,346,589.60 and 768,139.20

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Solution

The fourth proportional to 2,897,726.40, 4,346,589.60 and 768,139.20 is: 1,152,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897,726.40 : 4,346,589.60 = 768,139.20 : x
  2. Step 2: Convert to fraction form
    2,897,726.40/4,346,589.60 = 768,139.20/x
  3. Step 3: Cross multiply
    2,897,726.40x = 4,346,589.60 × 768,139.20
  4. Step 4: Simplify right side
    2,897,726.40x = 3,338,785,858,072.32
  5. Step 5: Solve for x
    x = 3,338,785,858,072.32/2,897,726.40
  6. Step 6: Final answer
    x = 1,152,208.80

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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.