Home / 686,074.90-1,029,114.60-173,739.76

Finding the Fourth Proportional to 686,074.90, 1,029,114.60 and 173,739.76

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Solution

The fourth proportional to 686,074.90, 1,029,114.60 and 173,739.76 is: 260,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,074.90 : 1,029,114.60 = 173,739.76 : x
  2. Step 2: Convert to fraction form
    686,074.90/1,029,114.60 = 173,739.76/x
  3. Step 3: Cross multiply
    686,074.90x = 1,029,114.60 × 173,739.76
  4. Step 4: Simplify right side
    686,074.90x = 178,798,118,470.92
  5. Step 5: Solve for x
    x = 178,798,118,470.92/686,074.90
  6. Step 6: Final answer
    x = 260,610.20

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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.