Home / 987,583.01-1,362,860.35-551,999.78

Finding the Fourth Proportional to 987,583.01, 1,362,860.35 and 551,999.78

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Solution

The fourth proportional to 987,583.01, 1,362,860.35 and 551,999.78 is: 761,757.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,583.01 : 1,362,860.35 = 551,999.78 : x
  2. Step 2: Convert to fraction form
    987,583.01/1,362,860.35 = 551,999.78/x
  3. Step 3: Cross multiply
    987,583.01x = 1,362,860.35 × 551,999.78
  4. Step 4: Simplify right side
    987,583.01x = 752,298,606,556.42
  5. Step 5: Solve for x
    x = 752,298,606,556.42/987,583.01
  6. Step 6: Final answer
    x = 761,757.34

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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.