Home / 1,020,824-1,531,119.38-272,928.32

Finding the Fourth Proportional to 1,020,824, 1,531,119.38 and 272,928.32

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Solution

The fourth proportional to 1,020,824, 1,531,119.38 and 272,928.32 is: 409,361.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,824 : 1,531,119.38 = 272,928.32 : x
  2. Step 2: Convert to fraction form
    1,020,824/1,531,119.38 = 272,928.32/x
  3. Step 3: Cross multiply
    1,020,824x = 1,531,119.38 × 272,928.32
  4. Step 4: Simplify right side
    1,020,824x = 417,885,840,102.84
  5. Step 5: Solve for x
    x = 417,885,840,102.84/1,020,824
  6. Step 6: Final answer
    x = 409,361.30

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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.