Home / 830,939.40-1,246,344.30-325,402.20

Finding the Fourth Proportional to 830,939.40, 1,246,344.30 and 325,402.20

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Solution

The fourth proportional to 830,939.40, 1,246,344.30 and 325,402.20 is: 488,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,939.40 : 1,246,344.30 = 325,402.20 : x
  2. Step 2: Convert to fraction form
    830,939.40/1,246,344.30 = 325,402.20/x
  3. Step 3: Cross multiply
    830,939.40x = 1,246,344.30 × 325,402.20
  4. Step 4: Simplify right side
    830,939.40x = 405,563,177,177.46
  5. Step 5: Solve for x
    x = 405,563,177,177.46/830,939.40
  6. Step 6: Final answer
    x = 488,077.92

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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.