Home / 1,425,043.83-1,966,507.56-780,469.32

Finding the Fourth Proportional to 1,425,043.83, 1,966,507.56 and 780,469.32

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Solution

The fourth proportional to 1,425,043.83, 1,966,507.56 and 780,469.32 is: 1,077,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,043.83 : 1,966,507.56 = 780,469.32 : x
  2. Step 2: Convert to fraction form
    1,425,043.83/1,966,507.56 = 780,469.32/x
  3. Step 3: Cross multiply
    1,425,043.83x = 1,966,507.56 × 780,469.32
  4. Step 4: Simplify right side
    1,425,043.83x = 1,534,798,818,128.06
  5. Step 5: Solve for x
    x = 1,534,798,818,128.06/1,425,043.83
  6. Step 6: Final answer
    x = 1,077,018.68

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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.