Home / 1,297,460.52-1,790,488.39-716,723.60

Finding the Fourth Proportional to 1,297,460.52, 1,790,488.39 and 716,723.60

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Solution

The fourth proportional to 1,297,460.52, 1,790,488.39 and 716,723.60 is: 989,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,460.52 : 1,790,488.39 = 716,723.60 : x
  2. Step 2: Convert to fraction form
    1,297,460.52/1,790,488.39 = 716,723.60/x
  3. Step 3: Cross multiply
    1,297,460.52x = 1,790,488.39 × 716,723.60
  4. Step 4: Simplify right side
    1,297,460.52x = 1,283,285,288,457.91
  5. Step 5: Solve for x
    x = 1,283,285,288,457.91/1,297,460.52
  6. Step 6: Final answer
    x = 989,074.63

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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.