Home / 987,045.02-1,362,111.60-557,299.52

Finding the Fourth Proportional to 987,045.02, 1,362,111.60 and 557,299.52

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Solution

The fourth proportional to 987,045.02, 1,362,111.60 and 557,299.52 is: 769,067.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,045.02 : 1,362,111.60 = 557,299.52 : x
  2. Step 2: Convert to fraction form
    987,045.02/1,362,111.60 = 557,299.52/x
  3. Step 3: Cross multiply
    987,045.02x = 1,362,111.60 × 557,299.52
  4. Step 4: Simplify right side
    987,045.02x = 759,104,140,866.43
  5. Step 5: Solve for x
    x = 759,104,140,866.43/987,045.02
  6. Step 6: Final answer
    x = 769,067.39

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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.