Home / 1,127,511.90-1,691,350.88-488,435.64

Finding the Fourth Proportional to 1,127,511.90, 1,691,350.88 and 488,435.64

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Solution

The fourth proportional to 1,127,511.90, 1,691,350.88 and 488,435.64 is: 732,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,511.90 : 1,691,350.88 = 488,435.64 : x
  2. Step 2: Convert to fraction form
    1,127,511.90/1,691,350.88 = 488,435.64/x
  3. Step 3: Cross multiply
    1,127,511.90x = 1,691,350.88 × 488,435.64
  4. Step 4: Simplify right side
    1,127,511.90x = 826,116,049,537.36
  5. Step 5: Solve for x
    x = 826,116,049,537.36/1,127,511.90
  6. Step 6: Final answer
    x = 732,689.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.