Home / 688,649.28-1,033,033.44-190,013.28

Finding the Fourth Proportional to 688,649.28, 1,033,033.44 and 190,013.28

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Solution

The fourth proportional to 688,649.28, 1,033,033.44 and 190,013.28 is: 285,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,649.28 : 1,033,033.44 = 190,013.28 : x
  2. Step 2: Convert to fraction form
    688,649.28/1,033,033.44 = 190,013.28/x
  3. Step 3: Cross multiply
    688,649.28x = 1,033,033.44 × 190,013.28
  4. Step 4: Simplify right side
    688,649.28x = 196,290,072,284.08
  5. Step 5: Solve for x
    x = 196,290,072,284.08/688,649.28
  6. Step 6: Final answer
    x = 285,036.34

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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.