Home / 987,034.40-1,362,187.92-557,419.04

Finding the Fourth Proportional to 987,034.40, 1,362,187.92 and 557,419.04

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Solution

The fourth proportional to 987,034.40, 1,362,187.92 and 557,419.04 is: 769,283.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,034.40 : 1,362,187.92 = 557,419.04 : x
  2. Step 2: Convert to fraction form
    987,034.40/1,362,187.92 = 557,419.04/x
  3. Step 3: Cross multiply
    987,034.40x = 1,362,187.92 × 557,419.04
  4. Step 4: Simplify right side
    987,034.40x = 759,309,482,666.00
  5. Step 5: Solve for x
    x = 759,309,482,666.00/987,034.40
  6. Step 6: Final answer
    x = 769,283.71

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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.