Home / 1,290,796.56-1,781,267.76-746,856.86

Finding the Fourth Proportional to 1,290,796.56, 1,781,267.76 and 746,856.86

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Solution

The fourth proportional to 1,290,796.56, 1,781,267.76 and 746,856.86 is: 1,030,644.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,796.56 : 1,781,267.76 = 746,856.86 : x
  2. Step 2: Convert to fraction form
    1,290,796.56/1,781,267.76 = 746,856.86/x
  3. Step 3: Cross multiply
    1,290,796.56x = 1,781,267.76 × 746,856.86
  4. Step 4: Simplify right side
    1,290,796.56x = 1,330,352,037,146.49
  5. Step 5: Solve for x
    x = 1,330,352,037,146.49/1,290,796.56
  6. Step 6: Final answer
    x = 1,030,644.24

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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.