Home / 743,704.32-1,026,318.40-404,172.64

Finding the Fourth Proportional to 743,704.32, 1,026,318.40 and 404,172.64

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Solution

The fourth proportional to 743,704.32, 1,026,318.40 and 404,172.64 is: 557,761.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,704.32 : 1,026,318.40 = 404,172.64 : x
  2. Step 2: Convert to fraction form
    743,704.32/1,026,318.40 = 404,172.64/x
  3. Step 3: Cross multiply
    743,704.32x = 1,026,318.40 × 404,172.64
  4. Step 4: Simplify right side
    743,704.32x = 414,809,817,208.58
  5. Step 5: Solve for x
    x = 414,809,817,208.58/743,704.32
  6. Step 6: Final answer
    x = 557,761.74

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1.5x scale

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.