Home / 680,419.66-1,019,463.09-480,382.06

Finding the Fourth Proportional to 680,419.66, 1,019,463.09 and 480,382.06

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Solution

The fourth proportional to 680,419.66, 1,019,463.09 and 480,382.06 is: 719,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,419.66 : 1,019,463.09 = 480,382.06 : x
  2. Step 2: Convert to fraction form
    680,419.66/1,019,463.09 = 480,382.06/x
  3. Step 3: Cross multiply
    680,419.66x = 1,019,463.09 × 480,382.06
  4. Step 4: Simplify right side
    680,419.66x = 489,731,779,268.17
  5. Step 5: Solve for x
    x = 489,731,779,268.17/680,419.66
  6. Step 6: Final answer
    x = 719,749.60

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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.