Home / 862,208.85-1,189,848.54-499,842.77

Finding the Fourth Proportional to 862,208.85, 1,189,848.54 and 499,842.77

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Solution

The fourth proportional to 862,208.85, 1,189,848.54 and 499,842.77 is: 689,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,208.85 : 1,189,848.54 = 499,842.77 : x
  2. Step 2: Convert to fraction form
    862,208.85/1,189,848.54 = 499,842.77/x
  3. Step 3: Cross multiply
    862,208.85x = 1,189,848.54 × 499,842.77
  4. Step 4: Simplify right side
    862,208.85x = 594,737,192,732.12
  5. Step 5: Solve for x
    x = 594,737,192,732.12/862,208.85
  6. Step 6: Final answer
    x = 689,783.21

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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.