Home / 302,028.72-452,982.60-287,041.20

Finding the Fourth Proportional to 302,028.72, 452,982.60 and 287,041.20

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Solution

The fourth proportional to 302,028.72, 452,982.60 and 287,041.20 is: 430,504.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,028.72 : 452,982.60 = 287,041.20 : x
  2. Step 2: Convert to fraction form
    302,028.72/452,982.60 = 287,041.20/x
  3. Step 3: Cross multiply
    302,028.72x = 452,982.60 × 287,041.20
  4. Step 4: Simplify right side
    302,028.72x = 130,024,669,083.12
  5. Step 5: Solve for x
    x = 130,024,669,083.12/302,028.72
  6. Step 6: Final answer
    x = 430,504.32

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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.