Home / 1,126,978.64-1,690,743.36-328,247.36

Finding the Fourth Proportional to 1,126,978.64, 1,690,743.36 and 328,247.36

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Solution

The fourth proportional to 1,126,978.64, 1,690,743.36 and 328,247.36 is: 492,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,978.64 : 1,690,743.36 = 328,247.36 : x
  2. Step 2: Convert to fraction form
    1,126,978.64/1,690,743.36 = 328,247.36/x
  3. Step 3: Cross multiply
    1,126,978.64x = 1,690,743.36 × 328,247.36
  4. Step 4: Simplify right side
    1,126,978.64x = 554,982,044,357.53
  5. Step 5: Solve for x
    x = 554,982,044,357.53/1,126,978.64
  6. Step 6: Final answer
    x = 492,451.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.