Home / 1,385,866.58-1,912,495.89-782,293.46

Finding the Fourth Proportional to 1,385,866.58, 1,912,495.89 and 782,293.46

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Solution

The fourth proportional to 1,385,866.58, 1,912,495.89 and 782,293.46 is: 1,079,564.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,866.58 : 1,912,495.89 = 782,293.46 : x
  2. Step 2: Convert to fraction form
    1,385,866.58/1,912,495.89 = 782,293.46/x
  3. Step 3: Cross multiply
    1,385,866.58x = 1,912,495.89 × 782,293.46
  4. Step 4: Simplify right side
    1,385,866.58x = 1,496,133,027,023.88
  5. Step 5: Solve for x
    x = 1,496,133,027,023.88/1,385,866.58
  6. Step 6: Final answer
    x = 1,079,564.98

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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.