Home / 862,643.20-1,293,964.80-301,619.20

Finding the Fourth Proportional to 862,643.20, 1,293,964.80 and 301,619.20

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Solution

The fourth proportional to 862,643.20, 1,293,964.80 and 301,619.20 is: 452,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,643.20 : 1,293,964.80 = 301,619.20 : x
  2. Step 2: Convert to fraction form
    862,643.20/1,293,964.80 = 301,619.20/x
  3. Step 3: Cross multiply
    862,643.20x = 1,293,964.80 × 301,619.20
  4. Step 4: Simplify right side
    862,643.20x = 390,284,627,804.16
  5. Step 5: Solve for x
    x = 390,284,627,804.16/862,643.20
  6. Step 6: Final answer
    x = 452,428.80

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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.