Home / 816,646.82-1,225,218.90-417,567.92

Finding the Fourth Proportional to 816,646.82, 1,225,218.90 and 417,567.92

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Solution

The fourth proportional to 816,646.82, 1,225,218.90 and 417,567.92 is: 626,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,646.82 : 1,225,218.90 = 417,567.92 : x
  2. Step 2: Convert to fraction form
    816,646.82/1,225,218.90 = 417,567.92/x
  3. Step 3: Cross multiply
    816,646.82x = 1,225,218.90 × 417,567.92
  4. Step 4: Simplify right side
    816,646.82x = 511,612,107,617.69
  5. Step 5: Solve for x
    x = 511,612,107,617.69/816,646.82
  6. Step 6: Final answer
    x = 626,479.03

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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.