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Finding the Fourth Proportional to 379,628.84, 523,890.17 and 207,547.17

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Solution

The fourth proportional to 379,628.84, 523,890.17 and 207,547.17 is: 286,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,628.84 : 523,890.17 = 207,547.17 : x
  2. Step 2: Convert to fraction form
    379,628.84/523,890.17 = 207,547.17/x
  3. Step 3: Cross multiply
    379,628.84x = 523,890.17 × 207,547.17
  4. Step 4: Simplify right side
    379,628.84x = 108,731,922,174.32
  5. Step 5: Solve for x
    x = 108,731,922,174.32/379,628.84
  6. Step 6: Final answer
    x = 286,416.39

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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.