Home / 1,040,635.90-1,559,917.05-478,690.30

Finding the Fourth Proportional to 1,040,635.90, 1,559,917.05 and 478,690.30

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Solution

The fourth proportional to 1,040,635.90, 1,559,917.05 and 478,690.30 is: 717,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,635.90 : 1,559,917.05 = 478,690.30 : x
  2. Step 2: Convert to fraction form
    1,040,635.90/1,559,917.05 = 478,690.30/x
  3. Step 3: Cross multiply
    1,040,635.90x = 1,559,917.05 × 478,690.30
  4. Step 4: Simplify right side
    1,040,635.90x = 746,717,160,639.62
  5. Step 5: Solve for x
    x = 746,717,160,639.62/1,040,635.90
  6. Step 6: Final answer
    x = 717,558.52

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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.