Home / 1,129,007.20-1,558,047.60-619,756

Finding the Fourth Proportional to 1,129,007.20, 1,558,047.60 and 619,756

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Solution

The fourth proportional to 1,129,007.20, 1,558,047.60 and 619,756 is: 855,272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,007.20 : 1,558,047.60 = 619,756 : x
  2. Step 2: Convert to fraction form
    1,129,007.20/1,558,047.60 = 619,756/x
  3. Step 3: Cross multiply
    1,129,007.20x = 1,558,047.60 × 619,756
  4. Step 4: Simplify right side
    1,129,007.20x = 965,609,348,385.60
  5. Step 5: Solve for x
    x = 965,609,348,385.60/1,129,007.20
  6. Step 6: Final answer
    x = 855,272.98

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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.