Home / 1,318,055.16-1,818,959.16-729,361.38

Finding the Fourth Proportional to 1,318,055.16, 1,818,959.16 and 729,361.38

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Solution

The fourth proportional to 1,318,055.16, 1,818,959.16 and 729,361.38 is: 1,006,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,055.16 : 1,818,959.16 = 729,361.38 : x
  2. Step 2: Convert to fraction form
    1,318,055.16/1,818,959.16 = 729,361.38/x
  3. Step 3: Cross multiply
    1,318,055.16x = 1,818,959.16 × 729,361.38
  4. Step 4: Simplify right side
    1,318,055.16x = 1,326,678,563,101.24
  5. Step 5: Solve for x
    x = 1,326,678,563,101.24/1,318,055.16
  6. Step 6: Final answer
    x = 1,006,542.52

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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.