Home / 1,179,927.45-1,771,221.60-781,346.70

Finding the Fourth Proportional to 1,179,927.45, 1,771,221.60 and 781,346.70

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Solution

The fourth proportional to 1,179,927.45, 1,771,221.60 and 781,346.70 is: 1,172,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,927.45 : 1,771,221.60 = 781,346.70 : x
  2. Step 2: Convert to fraction form
    1,179,927.45/1,771,221.60 = 781,346.70/x
  3. Step 3: Cross multiply
    1,179,927.45x = 1,771,221.60 × 781,346.70
  4. Step 4: Simplify right side
    1,179,927.45x = 1,383,938,152,128.72
  5. Step 5: Solve for x
    x = 1,383,938,152,128.72/1,179,927.45
  6. Step 6: Final answer
    x = 1,172,901.06

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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.