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Finding the Fourth Proportional to 656,042.10, 905,347.20 and 365,645.62

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Solution

The fourth proportional to 656,042.10, 905,347.20 and 365,645.62 is: 504,596.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,042.10 : 905,347.20 = 365,645.62 : x
  2. Step 2: Convert to fraction form
    656,042.10/905,347.20 = 365,645.62/x
  3. Step 3: Cross multiply
    656,042.10x = 905,347.20 × 365,645.62
  4. Step 4: Simplify right side
    656,042.10x = 331,036,238,259.26
  5. Step 5: Solve for x
    x = 331,036,238,259.26/656,042.10
  6. Step 6: Final answer
    x = 504,596.03

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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.