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Finding the Fourth Proportional to 538,666.89, 743,337.53 and 293,646.35

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Solution

The fourth proportional to 538,666.89, 743,337.53 and 293,646.35 is: 405,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,666.89 : 743,337.53 = 293,646.35 : x
  2. Step 2: Convert to fraction form
    538,666.89/743,337.53 = 293,646.35/x
  3. Step 3: Cross multiply
    538,666.89x = 743,337.53 × 293,646.35
  4. Step 4: Simplify right side
    538,666.89x = 218,278,347,317.60
  5. Step 5: Solve for x
    x = 218,278,347,317.60/538,666.89
  6. Step 6: Final answer
    x = 405,219.54

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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.