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Finding the Fourth Proportional to 289,751.70, 434,627.55 and 289,751.70

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Solution

The fourth proportional to 289,751.70, 434,627.55 and 289,751.70 is: 434,627.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,751.70 : 434,627.55 = 289,751.70 : x
  2. Step 2: Convert to fraction form
    289,751.70/434,627.55 = 289,751.70/x
  3. Step 3: Cross multiply
    289,751.70x = 434,627.55 × 289,751.70
  4. Step 4: Simplify right side
    289,751.70x = 125,934,071,479.34
  5. Step 5: Solve for x
    x = 125,934,071,479.34/289,751.70
  6. Step 6: Final answer
    x = 434,627.55

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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.