Home / 1,425,668.64-1,967,422.68-781,113.28

Finding the Fourth Proportional to 1,425,668.64, 1,967,422.68 and 781,113.28

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Solution

The fourth proportional to 1,425,668.64, 1,967,422.68 and 781,113.28 is: 1,077,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,668.64 : 1,967,422.68 = 781,113.28 : x
  2. Step 2: Convert to fraction form
    1,425,668.64/1,967,422.68 = 781,113.28/x
  3. Step 3: Cross multiply
    1,425,668.64x = 1,967,422.68 × 781,113.28
  4. Step 4: Simplify right side
    1,425,668.64x = 1,536,779,982,721.19
  5. Step 5: Solve for x
    x = 1,536,779,982,721.19/1,425,668.64
  6. Step 6: Final answer
    x = 1,077,936.30

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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.