Home / 1,215,000.30-1,822,500.45-837,086.70

Finding the Fourth Proportional to 1,215,000.30, 1,822,500.45 and 837,086.70

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Solution

The fourth proportional to 1,215,000.30, 1,822,500.45 and 837,086.70 is: 1,255,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,000.30 : 1,822,500.45 = 837,086.70 : x
  2. Step 2: Convert to fraction form
    1,215,000.30/1,822,500.45 = 837,086.70/x
  3. Step 3: Cross multiply
    1,215,000.30x = 1,822,500.45 × 837,086.70
  4. Step 4: Simplify right side
    1,215,000.30x = 1,525,590,887,439.02
  5. Step 5: Solve for x
    x = 1,525,590,887,439.02/1,215,000.30
  6. Step 6: Final answer
    x = 1,255,630.05

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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.