Home / 911,333.40-1,367,000.10-280,246.20

Finding the Fourth Proportional to 911,333.40, 1,367,000.10 and 280,246.20

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Solution

The fourth proportional to 911,333.40, 1,367,000.10 and 280,246.20 is: 420,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,333.40 : 1,367,000.10 = 280,246.20 : x
  2. Step 2: Convert to fraction form
    911,333.40/1,367,000.10 = 280,246.20/x
  3. Step 3: Cross multiply
    911,333.40x = 1,367,000.10 × 280,246.20
  4. Step 4: Simplify right side
    911,333.40x = 383,096,583,424.62
  5. Step 5: Solve for x
    x = 383,096,583,424.62/911,333.40
  6. Step 6: Final answer
    x = 420,369.30

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1.5x scale

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.