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Finding the Fourth Proportional to 584,846.86, 807,148.57 and 421,637.88

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Solution

The fourth proportional to 584,846.86, 807,148.57 and 421,637.88 is: 581,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,846.86 : 807,148.57 = 421,637.88 : x
  2. Step 2: Convert to fraction form
    584,846.86/807,148.57 = 421,637.88/x
  3. Step 3: Cross multiply
    584,846.86x = 807,148.57 × 421,637.88
  4. Step 4: Simplify right side
    584,846.86x = 340,324,413,578.87
  5. Step 5: Solve for x
    x = 340,324,413,578.87/584,846.86
  6. Step 6: Final answer
    x = 581,903.47

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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.