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Finding the Fourth Proportional to 1,301,246.06, 1,795,649.10 and 728,175.50

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Solution

The fourth proportional to 1,301,246.06, 1,795,649.10 and 728,175.50 is: 1,004,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,246.06 : 1,795,649.10 = 728,175.50 : x
  2. Step 2: Convert to fraction form
    1,301,246.06/1,795,649.10 = 728,175.50/x
  3. Step 3: Cross multiply
    1,301,246.06x = 1,795,649.10 × 728,175.50
  4. Step 4: Simplify right side
    1,301,246.06x = 1,307,547,681,217.05
  5. Step 5: Solve for x
    x = 1,307,547,681,217.05/1,301,246.06
  6. Step 6: Final answer
    x = 1,004,842.76

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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.