Home / 680,779.13-1,019,936.88-490,207.73

Finding the Fourth Proportional to 680,779.13, 1,019,936.88 and 490,207.73

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Solution

The fourth proportional to 680,779.13, 1,019,936.88 and 490,207.73 is: 734,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,779.13 : 1,019,936.88 = 490,207.73 : x
  2. Step 2: Convert to fraction form
    680,779.13/1,019,936.88 = 490,207.73/x
  3. Step 3: Cross multiply
    680,779.13x = 1,019,936.88 × 490,207.73
  4. Step 4: Simplify right side
    680,779.13x = 499,980,937,588.40
  5. Step 5: Solve for x
    x = 499,980,937,588.40/680,779.13
  6. Step 6: Final answer
    x = 734,424.60

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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.