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Finding the Fourth Proportional to 379,484.37, 523,699.29 and 207,411.93

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Solution

The fourth proportional to 379,484.37, 523,699.29 and 207,411.93 is: 286,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,484.37 : 523,699.29 = 207,411.93 : x
  2. Step 2: Convert to fraction form
    379,484.37/523,699.29 = 207,411.93/x
  3. Step 3: Cross multiply
    379,484.37x = 523,699.29 × 207,411.93
  4. Step 4: Simplify right side
    379,484.37x = 108,621,480,478.53
  5. Step 5: Solve for x
    x = 108,621,480,478.53/379,484.37
  6. Step 6: Final answer
    x = 286,234.40

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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.