Home / 830,938.40-1,246,342.80-325,401.20

Finding the Fourth Proportional to 830,938.40, 1,246,342.80 and 325,401.20

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Solution

The fourth proportional to 830,938.40, 1,246,342.80 and 325,401.20 is: 488,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,938.40 : 1,246,342.80 = 325,401.20 : x
  2. Step 2: Convert to fraction form
    830,938.40/1,246,342.80 = 325,401.20/x
  3. Step 3: Cross multiply
    830,938.40x = 1,246,342.80 × 325,401.20
  4. Step 4: Simplify right side
    830,938.40x = 405,561,442,731.36
  5. Step 5: Solve for x
    x = 405,561,442,731.36/830,938.40
  6. Step 6: Final answer
    x = 488,076.42

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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.