Home / 1,128,574.94-1,557,433.31-645,150.87

Finding the Fourth Proportional to 1,128,574.94, 1,557,433.31 and 645,150.87

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Solution

The fourth proportional to 1,128,574.94, 1,557,433.31 and 645,150.87 is: 890,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,574.94 : 1,557,433.31 = 645,150.87 : x
  2. Step 2: Convert to fraction form
    1,128,574.94/1,557,433.31 = 645,150.87/x
  3. Step 3: Cross multiply
    1,128,574.94x = 1,557,433.31 × 645,150.87
  4. Step 4: Simplify right side
    1,128,574.94x = 1,004,779,451,687.73
  5. Step 5: Solve for x
    x = 1,004,779,451,687.73/1,128,574.94
  6. Step 6: Final answer
    x = 890,308.14

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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.