Home / 816,636.69-1,225,204.11-417,557.79

Finding the Fourth Proportional to 816,636.69, 1,225,204.11 and 417,557.79

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Solution

The fourth proportional to 816,636.69, 1,225,204.11 and 417,557.79 is: 626,464.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,636.69 : 1,225,204.11 = 417,557.79 : x
  2. Step 2: Convert to fraction form
    816,636.69/1,225,204.11 = 417,557.79/x
  3. Step 3: Cross multiply
    816,636.69x = 1,225,204.11 × 417,557.79
  4. Step 4: Simplify right side
    816,636.69x = 511,593,520,470.52
  5. Step 5: Solve for x
    x = 511,593,520,470.52/816,636.69
  6. Step 6: Final answer
    x = 626,464.04

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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.