Home / 1,020,888-1,531,215.24-272,992.32

Finding the Fourth Proportional to 1,020,888, 1,531,215.24 and 272,992.32

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Solution

The fourth proportional to 1,020,888, 1,531,215.24 and 272,992.32 is: 409,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,888 : 1,531,215.24 = 272,992.32 : x
  2. Step 2: Convert to fraction form
    1,020,888/1,531,215.24 = 272,992.32/x
  3. Step 3: Cross multiply
    1,020,888x = 1,531,215.24 × 272,992.32
  4. Step 4: Simplify right side
    1,020,888x = 418,010,000,786.96
  5. Step 5: Solve for x
    x = 418,010,000,786.96/1,020,888
  6. Step 6: Final answer
    x = 409,457.26

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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.