Home / 1,079,478.90-1,618,181.55-839,459.70

Finding the Fourth Proportional to 1,079,478.90, 1,618,181.55 and 839,459.70

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Solution

The fourth proportional to 1,079,478.90, 1,618,181.55 and 839,459.70 is: 1,258,383.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,478.90 : 1,618,181.55 = 839,459.70 : x
  2. Step 2: Convert to fraction form
    1,079,478.90/1,618,181.55 = 839,459.70/x
  3. Step 3: Cross multiply
    1,079,478.90x = 1,618,181.55 × 839,459.70
  4. Step 4: Simplify right side
    1,079,478.90x = 1,358,398,198,508.53
  5. Step 5: Solve for x
    x = 1,358,398,198,508.53/1,079,478.90
  6. Step 6: Final answer
    x = 1,258,383.28

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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.