Home / 1,389,932.04-2,086,246.25-670,779.92

Finding the Fourth Proportional to 1,389,932.04, 2,086,246.25 and 670,779.92

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Solution

The fourth proportional to 1,389,932.04, 2,086,246.25 and 670,779.92 is: 1,006,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,932.04 : 2,086,246.25 = 670,779.92 : x
  2. Step 2: Convert to fraction form
    1,389,932.04/2,086,246.25 = 670,779.92/x
  3. Step 3: Cross multiply
    1,389,932.04x = 2,086,246.25 × 670,779.92
  4. Step 4: Simplify right side
    1,389,932.04x = 1,399,412,078,890.17
  5. Step 5: Solve for x
    x = 1,399,412,078,890.17/1,389,932.04
  6. Step 6: Final answer
    x = 1,006,820.51

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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.