Home / 1,318,055.28-1,977,236.52-477,003.12

Finding the Fourth Proportional to 1,318,055.28, 1,977,236.52 and 477,003.12

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Solution

The fourth proportional to 1,318,055.28, 1,977,236.52 and 477,003.12 is: 715,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,055.28 : 1,977,236.52 = 477,003.12 : x
  2. Step 2: Convert to fraction form
    1,318,055.28/1,977,236.52 = 477,003.12/x
  3. Step 3: Cross multiply
    1,318,055.28x = 1,977,236.52 × 477,003.12
  4. Step 4: Simplify right side
    1,318,055.28x = 943,147,989,017.94
  5. Step 5: Solve for x
    x = 943,147,989,017.94/1,318,055.28
  6. Step 6: Final answer
    x = 715,560.27

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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.