Home / 1,431,481-2,147,234.46-434,209

Finding the Fourth Proportional to 1,431,481, 2,147,234.46 and 434,209

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Solution

The fourth proportional to 1,431,481, 2,147,234.46 and 434,209 is: 651,317.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,481 : 2,147,234.46 = 434,209 : x
  2. Step 2: Convert to fraction form
    1,431,481/2,147,234.46 = 434,209/x
  3. Step 3: Cross multiply
    1,431,481x = 2,147,234.46 × 434,209
  4. Step 4: Simplify right side
    1,431,481x = 932,348,527,642.14
  5. Step 5: Solve for x
    x = 932,348,527,642.14/1,431,481
  6. Step 6: Final answer
    x = 651,317.43

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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.