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Finding the Fourth Proportional to 536,073.68, 739,730.76 and 321,173.84

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Solution

The fourth proportional to 536,073.68, 739,730.76 and 321,173.84 is: 443,189.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,073.68 : 739,730.76 = 321,173.84 : x
  2. Step 2: Convert to fraction form
    536,073.68/739,730.76 = 321,173.84/x
  3. Step 3: Cross multiply
    536,073.68x = 739,730.76 × 321,173.84
  4. Step 4: Simplify right side
    536,073.68x = 237,582,168,755.32
  5. Step 5: Solve for x
    x = 237,582,168,755.32/536,073.68
  6. Step 6: Final answer
    x = 443,189.39

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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.