Home / 1,225,213.28-1,690,546.56-715,817.24

Finding the Fourth Proportional to 1,225,213.28, 1,690,546.56 and 715,817.24

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Solution

The fourth proportional to 1,225,213.28, 1,690,546.56 and 715,817.24 is: 987,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,213.28 : 1,690,546.56 = 715,817.24 : x
  2. Step 2: Convert to fraction form
    1,225,213.28/1,690,546.56 = 715,817.24/x
  3. Step 3: Cross multiply
    1,225,213.28x = 1,690,546.56 × 715,817.24
  4. Step 4: Simplify right side
    1,225,213.28x = 1,210,122,372,670.69
  5. Step 5: Solve for x
    x = 1,210,122,372,670.69/1,225,213.28
  6. Step 6: Final answer
    x = 987,683.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.