Home / 830,918.40-1,246,312.80-325,381.20

Finding the Fourth Proportional to 830,918.40, 1,246,312.80 and 325,381.20

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Solution

The fourth proportional to 830,918.40, 1,246,312.80 and 325,381.20 is: 488,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,918.40 : 1,246,312.80 = 325,381.20 : x
  2. Step 2: Convert to fraction form
    830,918.40/1,246,312.80 = 325,381.20/x
  3. Step 3: Cross multiply
    830,918.40x = 1,246,312.80 × 325,381.20
  4. Step 4: Simplify right side
    830,918.40x = 405,526,754,439.36
  5. Step 5: Solve for x
    x = 405,526,754,439.36/830,918.40
  6. Step 6: Final answer
    x = 488,046.42

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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.