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Finding the Fourth Proportional to 634,310.09, 874,501.11 and 503,920.37

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Solution

The fourth proportional to 634,310.09, 874,501.11 and 503,920.37 is: 694,737.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,310.09 : 874,501.11 = 503,920.37 : x
  2. Step 2: Convert to fraction form
    634,310.09/874,501.11 = 503,920.37/x
  3. Step 3: Cross multiply
    634,310.09x = 874,501.11 × 503,920.37
  4. Step 4: Simplify right side
    634,310.09x = 440,678,922,916.61
  5. Step 5: Solve for x
    x = 440,678,922,916.61/634,310.09
  6. Step 6: Final answer
    x = 694,737.37

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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.