Home / 743,680.32-1,026,278.40-404,148.60

Finding the Fourth Proportional to 743,680.32, 1,026,278.40 and 404,148.60

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Solution

The fourth proportional to 743,680.32, 1,026,278.40 and 404,148.60 is: 557,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,680.32 : 1,026,278.40 = 404,148.60 : x
  2. Step 2: Convert to fraction form
    743,680.32/1,026,278.40 = 404,148.60/x
  3. Step 3: Cross multiply
    743,680.32x = 1,026,278.40 × 404,148.60
  4. Step 4: Simplify right side
    743,680.32x = 414,768,978,570.24
  5. Step 5: Solve for x
    x = 414,768,978,570.24/743,680.32
  6. Step 6: Final answer
    x = 557,724.83

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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.