Home / 554,966.31-765,854.19-300,317.50

Finding the Fourth Proportional to 554,966.31, 765,854.19 and 300,317.50

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Solution

The fourth proportional to 554,966.31, 765,854.19 and 300,317.50 is: 414,438.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,966.31 : 765,854.19 = 300,317.50 : x
  2. Step 2: Convert to fraction form
    554,966.31/765,854.19 = 300,317.50/x
  3. Step 3: Cross multiply
    554,966.31x = 765,854.19 × 300,317.50
  4. Step 4: Simplify right side
    554,966.31x = 229,999,416,662.64
  5. Step 5: Solve for x
    x = 229,999,416,662.64/554,966.31
  6. Step 6: Final answer
    x = 414,438.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.