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Finding the Fourth Proportional to 501,354.96, 691,902.72 and 275,000.46

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Solution

The fourth proportional to 501,354.96, 691,902.72 and 275,000.46 is: 379,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,354.96 : 691,902.72 = 275,000.46 : x
  2. Step 2: Convert to fraction form
    501,354.96/691,902.72 = 275,000.46/x
  3. Step 3: Cross multiply
    501,354.96x = 691,902.72 × 275,000.46
  4. Step 4: Simplify right side
    501,354.96x = 190,273,566,275.25
  5. Step 5: Solve for x
    x = 190,273,566,275.25/501,354.96
  6. Step 6: Final answer
    x = 379,518.67

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1.5x scale

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.