Home / 839,285.11-1,259,299.77-439,830.91

Finding the Fourth Proportional to 839,285.11, 1,259,299.77 and 439,830.91

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Solution

The fourth proportional to 839,285.11, 1,259,299.77 and 439,830.91 is: 659,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,285.11 : 1,259,299.77 = 439,830.91 : x
  2. Step 2: Convert to fraction form
    839,285.11/1,259,299.77 = 439,830.91/x
  3. Step 3: Cross multiply
    839,285.11x = 1,259,299.77 × 439,830.91
  4. Step 4: Simplify right side
    839,285.11x = 553,878,960,653.64
  5. Step 5: Solve for x
    x = 553,878,960,653.64/839,285.11
  6. Step 6: Final answer
    x = 659,941.37

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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.