Home / 1,215,000.30-1,822,500.45-1,150,046.40

Finding the Fourth Proportional to 1,215,000.30, 1,822,500.45 and 1,150,046.40

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Solution

The fourth proportional to 1,215,000.30, 1,822,500.45 and 1,150,046.40 is: 1,725,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,000.30 : 1,822,500.45 = 1,150,046.40 : x
  2. Step 2: Convert to fraction form
    1,215,000.30/1,822,500.45 = 1,150,046.40/x
  3. Step 3: Cross multiply
    1,215,000.30x = 1,822,500.45 × 1,150,046.40
  4. Step 4: Simplify right side
    1,215,000.30x = 2,095,960,081,520.88
  5. Step 5: Solve for x
    x = 2,095,960,081,520.88/1,215,000.30
  6. Step 6: Final answer
    x = 1,725,069.60

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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.