Home / 1,425,447.32-1,967,119.63-780,853.37

Finding the Fourth Proportional to 1,425,447.32, 1,967,119.63 and 780,853.37

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Solution

The fourth proportional to 1,425,447.32, 1,967,119.63 and 780,853.37 is: 1,077,578.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,447.32 : 1,967,119.63 = 780,853.37 : x
  2. Step 2: Convert to fraction form
    1,425,447.32/1,967,119.63 = 780,853.37/x
  3. Step 3: Cross multiply
    1,425,447.32x = 1,967,119.63 × 780,853.37
  4. Step 4: Simplify right side
    1,425,447.32x = 1,536,031,980,490.92
  5. Step 5: Solve for x
    x = 1,536,031,980,490.92/1,425,447.32
  6. Step 6: Final answer
    x = 1,077,578.92

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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.