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Finding the Fourth Proportional to 534,486.68, 737,386.40 and 305,056.72

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Solution

The fourth proportional to 534,486.68, 737,386.40 and 305,056.72 is: 420,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,486.68 : 737,386.40 = 305,056.72 : x
  2. Step 2: Convert to fraction form
    534,486.68/737,386.40 = 305,056.72/x
  3. Step 3: Cross multiply
    534,486.68x = 737,386.40 × 305,056.72
  4. Step 4: Simplify right side
    534,486.68x = 224,944,676,556.61
  5. Step 5: Solve for x
    x = 224,944,676,556.61/534,486.68
  6. Step 6: Final answer
    x = 420,861.15

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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.