Home / 1,128,518.01-1,557,354.96-645,093.72

Finding the Fourth Proportional to 1,128,518.01, 1,557,354.96 and 645,093.72

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Solution

The fourth proportional to 1,128,518.01, 1,557,354.96 and 645,093.72 is: 890,229.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,518.01 : 1,557,354.96 = 645,093.72 : x
  2. Step 2: Convert to fraction form
    1,128,518.01/1,557,354.96 = 645,093.72/x
  3. Step 3: Cross multiply
    1,128,518.01x = 1,557,354.96 × 645,093.72
  4. Step 4: Simplify right side
    1,128,518.01x = 1,004,639,904,506.85
  5. Step 5: Solve for x
    x = 1,004,639,904,506.85/1,128,518.01
  6. Step 6: Final answer
    x = 890,229.39

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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.