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Finding the Fourth Proportional to 535,998.48, 739,644.72 and 294,279.68

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Solution

The fourth proportional to 535,998.48, 739,644.72 and 294,279.68 is: 406,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,998.48 : 739,644.72 = 294,279.68 : x
  2. Step 2: Convert to fraction form
    535,998.48/739,644.72 = 294,279.68/x
  3. Step 3: Cross multiply
    535,998.48x = 739,644.72 × 294,279.68
  4. Step 4: Simplify right side
    535,998.48x = 217,662,411,515.29
  5. Step 5: Solve for x
    x = 217,662,411,515.29/535,998.48
  6. Step 6: Final answer
    x = 406,087.74

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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.