Home / 1,214,310.40-1,820,007.60-503,972.80

Finding the Fourth Proportional to 1,214,310.40, 1,820,007.60 and 503,972.80

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Solution

The fourth proportional to 1,214,310.40, 1,820,007.60 and 503,972.80 is: 755,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,310.40 : 1,820,007.60 = 503,972.80 : x
  2. Step 2: Convert to fraction form
    1,214,310.40/1,820,007.60 = 503,972.80/x
  3. Step 3: Cross multiply
    1,214,310.40x = 1,820,007.60 × 503,972.80
  4. Step 4: Simplify right side
    1,214,310.40x = 917,234,326,193.28
  5. Step 5: Solve for x
    x = 917,234,326,193.28/1,214,310.40
  6. Step 6: Final answer
    x = 755,354.09

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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.