Home / 1,292,498.85-1,783,590.89-740,819.10

Finding the Fourth Proportional to 1,292,498.85, 1,783,590.89 and 740,819.10

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Solution

The fourth proportional to 1,292,498.85, 1,783,590.89 and 740,819.10 is: 1,022,297.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,498.85 : 1,783,590.89 = 740,819.10 : x
  2. Step 2: Convert to fraction form
    1,292,498.85/1,783,590.89 = 740,819.10/x
  3. Step 3: Cross multiply
    1,292,498.85x = 1,783,590.89 × 740,819.10
  4. Step 4: Simplify right side
    1,292,498.85x = 1,321,318,197,898.00
  5. Step 5: Solve for x
    x = 1,321,318,197,898.00/1,292,498.85
  6. Step 6: Final answer
    x = 1,022,297.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.