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Finding the Fourth Proportional to 523,018.50, 784,811.25 and 404,920.50

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Solution

The fourth proportional to 523,018.50, 784,811.25 and 404,920.50 is: 607,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,018.50 : 784,811.25 = 404,920.50 : x
  2. Step 2: Convert to fraction form
    523,018.50/784,811.25 = 404,920.50/x
  3. Step 3: Cross multiply
    523,018.50x = 784,811.25 × 404,920.50
  4. Step 4: Simplify right side
    523,018.50x = 317,786,163,755.63
  5. Step 5: Solve for x
    x = 317,786,163,755.63/523,018.50
  6. Step 6: Final answer
    x = 607,600.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.