Home / 830,304.96-1,245,405.60-331,310.40

Finding the Fourth Proportional to 830,304.96, 1,245,405.60 and 331,310.40

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Solution

The fourth proportional to 830,304.96, 1,245,405.60 and 331,310.40 is: 496,944.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,304.96 : 1,245,405.60 = 331,310.40 : x
  2. Step 2: Convert to fraction form
    830,304.96/1,245,405.60 = 331,310.40/x
  3. Step 3: Cross multiply
    830,304.96x = 1,245,405.60 × 331,310.40
  4. Step 4: Simplify right side
    830,304.96x = 412,615,827,498.24
  5. Step 5: Solve for x
    x = 412,615,827,498.24/830,304.96
  6. Step 6: Final answer
    x = 496,944.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.