Home / 1,688,372.21-2,329,951.16-913,999.25

Finding the Fourth Proportional to 1,688,372.21, 2,329,951.16 and 913,999.25

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Solution

The fourth proportional to 1,688,372.21, 2,329,951.16 and 913,999.25 is: 1,261,317.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,372.21 : 2,329,951.16 = 913,999.25 : x
  2. Step 2: Convert to fraction form
    1,688,372.21/2,329,951.16 = 913,999.25/x
  3. Step 3: Cross multiply
    1,688,372.21x = 2,329,951.16 × 913,999.25
  4. Step 4: Simplify right side
    1,688,372.21x = 2,129,573,596,556.88
  5. Step 5: Solve for x
    x = 2,129,573,596,556.88/1,688,372.21
  6. Step 6: Final answer
    x = 1,261,317.61

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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.