Home / 816,633.82-1,225,199.40-417,554.92

Finding the Fourth Proportional to 816,633.82, 1,225,199.40 and 417,554.92

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Solution

The fourth proportional to 816,633.82, 1,225,199.40 and 417,554.92 is: 626,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,633.82 : 1,225,199.40 = 417,554.92 : x
  2. Step 2: Convert to fraction form
    816,633.82/1,225,199.40 = 417,554.92/x
  3. Step 3: Cross multiply
    816,633.82x = 1,225,199.40 × 417,554.92
  4. Step 4: Simplify right side
    816,633.82x = 511,588,037,451.05
  5. Step 5: Solve for x
    x = 511,588,037,451.05/816,633.82
  6. Step 6: Final answer
    x = 626,459.53

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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.