Home / 1,425,456.64-1,967,130.96-780,900.16

Finding the Fourth Proportional to 1,425,456.64, 1,967,130.96 and 780,900.16

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Solution

The fourth proportional to 1,425,456.64, 1,967,130.96 and 780,900.16 is: 1,077,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,456.64 : 1,967,130.96 = 780,900.16 : x
  2. Step 2: Convert to fraction form
    1,425,456.64/1,967,130.96 = 780,900.16/x
  3. Step 3: Cross multiply
    1,425,456.64x = 1,967,130.96 × 780,900.16
  4. Step 4: Simplify right side
    1,425,456.64x = 1,536,132,881,404.95
  5. Step 5: Solve for x
    x = 1,536,132,881,404.95/1,425,456.64
  6. Step 6: Final answer
    x = 1,077,642.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.