Home / 1,265,072.64-1,746,432-728,424.96

Finding the Fourth Proportional to 1,265,072.64, 1,746,432 and 728,424.96

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Solution

The fourth proportional to 1,265,072.64, 1,746,432 and 728,424.96 is: 1,005,590.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,072.64 : 1,746,432 = 728,424.96 : x
  2. Step 2: Convert to fraction form
    1,265,072.64/1,746,432 = 728,424.96/x
  3. Step 3: Cross multiply
    1,265,072.64x = 1,746,432 × 728,424.96
  4. Step 4: Simplify right side
    1,265,072.64x = 1,272,144,659,742.72
  5. Step 5: Solve for x
    x = 1,272,144,659,742.72/1,265,072.64
  6. Step 6: Final answer
    x = 1,005,590.21

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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.