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Finding the Fourth Proportional to 1,335,715, 2,003,689.14 and 338,443

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Solution

The fourth proportional to 1,335,715, 2,003,689.14 and 338,443 is: 507,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,715 : 2,003,689.14 = 338,443 : x
  2. Step 2: Convert to fraction form
    1,335,715/2,003,689.14 = 338,443/x
  3. Step 3: Cross multiply
    1,335,715x = 2,003,689.14 × 338,443
  4. Step 4: Simplify right side
    1,335,715x = 678,134,563,609.02
  5. Step 5: Solve for x
    x = 678,134,563,609.02/1,335,715
  6. Step 6: Final answer
    x = 507,694.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.