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Finding the Fourth Proportional to 402,329.04, 554,222.60 and 344,783.61

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Solution

The fourth proportional to 402,329.04, 554,222.60 and 344,783.61 is: 474,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,329.04 : 554,222.60 = 344,783.61 : x
  2. Step 2: Convert to fraction form
    402,329.04/554,222.60 = 344,783.61/x
  3. Step 3: Cross multiply
    402,329.04x = 554,222.60 × 344,783.61
  4. Step 4: Simplify right side
    402,329.04x = 191,086,867,047.67
  5. Step 5: Solve for x
    x = 191,086,867,047.67/402,329.04
  6. Step 6: Final answer
    x = 474,951.71

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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.