Home / 1,620,666.66-2,431,001.82-422,587.98

Finding the Fourth Proportional to 1,620,666.66, 2,431,001.82 and 422,587.98

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Solution

The fourth proportional to 1,620,666.66, 2,431,001.82 and 422,587.98 is: 633,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,666.66 : 2,431,001.82 = 422,587.98 : x
  2. Step 2: Convert to fraction form
    1,620,666.66/2,431,001.82 = 422,587.98/x
  3. Step 3: Cross multiply
    1,620,666.66x = 2,431,001.82 × 422,587.98
  4. Step 4: Simplify right side
    1,620,666.66x = 1,027,312,148,490.12
  5. Step 5: Solve for x
    x = 1,027,312,148,490.12/1,620,666.66
  6. Step 6: Final answer
    x = 633,882.45

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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.