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Finding the Fourth Proportional to 558,369.67, 770,490.61 and 328,913.41

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Solution

The fourth proportional to 558,369.67, 770,490.61 and 328,913.41 is: 453,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,369.67 : 770,490.61 = 328,913.41 : x
  2. Step 2: Convert to fraction form
    558,369.67/770,490.61 = 328,913.41/x
  3. Step 3: Cross multiply
    558,369.67x = 770,490.61 × 328,913.41
  4. Step 4: Simplify right side
    558,369.67x = 253,424,693,908.08
  5. Step 5: Solve for x
    x = 253,424,693,908.08/558,369.67
  6. Step 6: Final answer
    x = 453,865.44

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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.