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Finding the Fourth Proportional to 547,458.40, 820,628.70 and 369,983.35

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Solution

The fourth proportional to 547,458.40, 820,628.70 and 369,983.35 is: 554,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,458.40 : 820,628.70 = 369,983.35 : x
  2. Step 2: Convert to fraction form
    547,458.40/820,628.70 = 369,983.35/x
  3. Step 3: Cross multiply
    547,458.40x = 820,628.70 × 369,983.35
  4. Step 4: Simplify right side
    547,458.40x = 303,618,955,532.15
  5. Step 5: Solve for x
    x = 303,618,955,532.15/547,458.40
  6. Step 6: Final answer
    x = 554,597.31

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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.