Home / 1,077,490.38-1,616,243.66-478,290.45

Finding the Fourth Proportional to 1,077,490.38, 1,616,243.66 and 478,290.45

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Solution

The fourth proportional to 1,077,490.38, 1,616,243.66 and 478,290.45 is: 717,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,490.38 : 1,616,243.66 = 478,290.45 : x
  2. Step 2: Convert to fraction form
    1,077,490.38/1,616,243.66 = 478,290.45/x
  3. Step 3: Cross multiply
    1,077,490.38x = 1,616,243.66 × 478,290.45
  4. Step 4: Simplify right side
    1,077,490.38x = 773,033,907,451.05
  5. Step 5: Solve for x
    x = 773,033,907,451.05/1,077,490.38
  6. Step 6: Final answer
    x = 717,439.27

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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.