Home / 1,686,028.40-2,529,042.60-487,989.80

Finding the Fourth Proportional to 1,686,028.40, 2,529,042.60 and 487,989.80

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Solution

The fourth proportional to 1,686,028.40, 2,529,042.60 and 487,989.80 is: 731,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,028.40 : 2,529,042.60 = 487,989.80 : x
  2. Step 2: Convert to fraction form
    1,686,028.40/2,529,042.60 = 487,989.80/x
  3. Step 3: Cross multiply
    1,686,028.40x = 2,529,042.60 × 487,989.80
  4. Step 4: Simplify right side
    1,686,028.40x = 1,234,146,992,565.48
  5. Step 5: Solve for x
    x = 1,234,146,992,565.48/1,686,028.40
  6. Step 6: Final answer
    x = 731,984.70

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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.