Home / 1,240,505.76-1,712,164.56-756,967.20

Finding the Fourth Proportional to 1,240,505.76, 1,712,164.56 and 756,967.20

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Solution

The fourth proportional to 1,240,505.76, 1,712,164.56 and 756,967.20 is: 1,044,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,505.76 : 1,712,164.56 = 756,967.20 : x
  2. Step 2: Convert to fraction form
    1,240,505.76/1,712,164.56 = 756,967.20/x
  3. Step 3: Cross multiply
    1,240,505.76x = 1,712,164.56 × 756,967.20
  4. Step 4: Simplify right side
    1,240,505.76x = 1,296,052,412,922.43
  5. Step 5: Solve for x
    x = 1,296,052,412,922.43/1,240,505.76
  6. Step 6: Final answer
    x = 1,044,777.42

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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.