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Finding the Fourth Proportional to 289,006.30, 403,821.50 and 289,006.30

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Solution

The fourth proportional to 289,006.30, 403,821.50 and 289,006.30 is: 403,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,006.30 : 403,821.50 = 289,006.30 : x
  2. Step 2: Convert to fraction form
    289,006.30/403,821.50 = 289,006.30/x
  3. Step 3: Cross multiply
    289,006.30x = 403,821.50 × 289,006.30
  4. Step 4: Simplify right side
    289,006.30x = 116,706,957,575.45
  5. Step 5: Solve for x
    x = 116,706,957,575.45/289,006.30
  6. Step 6: Final answer
    x = 403,821.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.