Home / 818,372.50-1,129,389.26-455,796.52

Finding the Fourth Proportional to 818,372.50, 1,129,389.26 and 455,796.52

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Solution

The fourth proportional to 818,372.50, 1,129,389.26 and 455,796.52 is: 629,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,372.50 : 1,129,389.26 = 455,796.52 : x
  2. Step 2: Convert to fraction form
    818,372.50/1,129,389.26 = 455,796.52/x
  3. Step 3: Cross multiply
    818,372.50x = 1,129,389.26 × 455,796.52
  4. Step 4: Simplify right side
    818,372.50x = 514,771,689,330.92
  5. Step 5: Solve for x
    x = 514,771,689,330.92/818,372.50
  6. Step 6: Final answer
    x = 629,018.80

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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.