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Finding the Fourth Proportional to 289,024.80, 403,847.40 and 289,024.80

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Solution

The fourth proportional to 289,024.80, 403,847.40 and 289,024.80 is: 403,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,024.80 : 403,847.40 = 289,024.80 : x
  2. Step 2: Convert to fraction form
    289,024.80/403,847.40 = 289,024.80/x
  3. Step 3: Cross multiply
    289,024.80x = 403,847.40 × 289,024.80
  4. Step 4: Simplify right side
    289,024.80x = 116,721,914,015.52
  5. Step 5: Solve for x
    x = 116,721,914,015.52/289,024.80
  6. Step 6: Final answer
    x = 403,847.40

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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.