Home / 743,705.32-1,026,319.78-404,173.64

Finding the Fourth Proportional to 743,705.32, 1,026,319.78 and 404,173.64

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Solution

The fourth proportional to 743,705.32, 1,026,319.78 and 404,173.64 is: 557,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,705.32 : 1,026,319.78 = 404,173.64 : x
  2. Step 2: Convert to fraction form
    743,705.32/1,026,319.78 = 404,173.64/x
  3. Step 3: Cross multiply
    743,705.32x = 1,026,319.78 × 404,173.64
  4. Step 4: Simplify right side
    743,705.32x = 414,811,401,286.60
  5. Step 5: Solve for x
    x = 414,811,401,286.60/743,705.32
  6. Step 6: Final answer
    x = 557,763.12

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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.