Home / 1,431,423.02-2,147,135.16-672,707.72

Finding the Fourth Proportional to 1,431,423.02, 2,147,135.16 and 672,707.72

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Solution

The fourth proportional to 1,431,423.02, 2,147,135.16 and 672,707.72 is: 1,009,061.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,423.02 : 2,147,135.16 = 672,707.72 : x
  2. Step 2: Convert to fraction form
    1,431,423.02/2,147,135.16 = 672,707.72/x
  3. Step 3: Cross multiply
    1,431,423.02x = 2,147,135.16 × 672,707.72
  4. Step 4: Simplify right side
    1,431,423.02x = 1,444,394,398,015.44
  5. Step 5: Solve for x
    x = 1,444,394,398,015.44/1,431,423.02
  6. Step 6: Final answer
    x = 1,009,061.88

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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.