Home / 730,012.20-1,094,499.90-280,559.40

Finding the Fourth Proportional to 730,012.20, 1,094,499.90 and 280,559.40

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Solution

The fourth proportional to 730,012.20, 1,094,499.90 and 280,559.40 is: 420,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,012.20 : 1,094,499.90 = 280,559.40 : x
  2. Step 2: Convert to fraction form
    730,012.20/1,094,499.90 = 280,559.40/x
  3. Step 3: Cross multiply
    730,012.20x = 1,094,499.90 × 280,559.40
  4. Step 4: Simplify right side
    730,012.20x = 307,072,235,244.06
  5. Step 5: Solve for x
    x = 307,072,235,244.06/730,012.20
  6. Step 6: Final answer
    x = 420,639.87

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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.