Home / 495,983.49-683,814.77-321,242.79

Finding the Fourth Proportional to 495,983.49, 683,814.77 and 321,242.79

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Solution

The fourth proportional to 495,983.49, 683,814.77 and 321,242.79 is: 442,898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,983.49 : 683,814.77 = 321,242.79 : x
  2. Step 2: Convert to fraction form
    495,983.49/683,814.77 = 321,242.79/x
  3. Step 3: Cross multiply
    495,983.49x = 683,814.77 × 321,242.79
  4. Step 4: Simplify right side
    495,983.49x = 219,670,564,558.01
  5. Step 5: Solve for x
    x = 219,670,564,558.01/495,983.49
  6. Step 6: Final answer
    x = 442,898.95

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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.