Home / 1,218,131.58-1,680,635.13-708,735.54

Finding the Fourth Proportional to 1,218,131.58, 1,680,635.13 and 708,735.54

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Solution

The fourth proportional to 1,218,131.58, 1,680,635.13 and 708,735.54 is: 977,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,131.58 : 1,680,635.13 = 708,735.54 : x
  2. Step 2: Convert to fraction form
    1,218,131.58/1,680,635.13 = 708,735.54/x
  3. Step 3: Cross multiply
    1,218,131.58x = 1,680,635.13 × 708,735.54
  4. Step 4: Simplify right side
    1,218,131.58x = 1,191,125,846,403.52
  5. Step 5: Solve for x
    x = 1,191,125,846,403.52/1,218,131.58
  6. Step 6: Final answer
    x = 977,830.20

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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.