Home / 1,689,338.08-2,534,839.80-790,840.72

Finding the Fourth Proportional to 1,689,338.08, 2,534,839.80 and 790,840.72

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Solution

The fourth proportional to 1,689,338.08, 2,534,839.80 and 790,840.72 is: 1,186,650.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,338.08 : 2,534,839.80 = 790,840.72 : x
  2. Step 2: Convert to fraction form
    1,689,338.08/2,534,839.80 = 790,840.72/x
  3. Step 3: Cross multiply
    1,689,338.08x = 2,534,839.80 × 790,840.72
  4. Step 4: Simplify right side
    1,689,338.08x = 2,004,654,532,516.66
  5. Step 5: Solve for x
    x = 2,004,654,532,516.66/1,689,338.08
  6. Step 6: Final answer
    x = 1,186,650.89

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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.