Home / 1,211,128.98-1,671,277.77-727,714.50

Finding the Fourth Proportional to 1,211,128.98, 1,671,277.77 and 727,714.50

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Solution

The fourth proportional to 1,211,128.98, 1,671,277.77 and 727,714.50 is: 1,004,197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,128.98 : 1,671,277.77 = 727,714.50 : x
  2. Step 2: Convert to fraction form
    1,211,128.98/1,671,277.77 = 727,714.50/x
  3. Step 3: Cross multiply
    1,211,128.98x = 1,671,277.77 × 727,714.50
  4. Step 4: Simplify right side
    1,211,128.98x = 1,216,213,066,756.67
  5. Step 5: Solve for x
    x = 1,216,213,066,756.67/1,211,128.98
  6. Step 6: Final answer
    x = 1,004,197.81

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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.