Home / 1,427,944.60-2,142,014.10-455,231.80

Finding the Fourth Proportional to 1,427,944.60, 2,142,014.10 and 455,231.80

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Solution

The fourth proportional to 1,427,944.60, 2,142,014.10 and 455,231.80 is: 682,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,944.60 : 2,142,014.10 = 455,231.80 : x
  2. Step 2: Convert to fraction form
    1,427,944.60/2,142,014.10 = 455,231.80/x
  3. Step 3: Cross multiply
    1,427,944.60x = 2,142,014.10 × 455,231.80
  4. Step 4: Simplify right side
    1,427,944.60x = 975,112,934,368.38
  5. Step 5: Solve for x
    x = 975,112,934,368.38/1,427,944.60
  6. Step 6: Final answer
    x = 682,878.69

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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.