Home / 456,481.20-685,283.40-288,001.20

Finding the Fourth Proportional to 456,481.20, 685,283.40 and 288,001.20

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Solution

The fourth proportional to 456,481.20, 685,283.40 and 288,001.20 is: 432,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,481.20 : 685,283.40 = 288,001.20 : x
  2. Step 2: Convert to fraction form
    456,481.20/685,283.40 = 288,001.20/x
  3. Step 3: Cross multiply
    456,481.20x = 685,283.40 × 288,001.20
  4. Step 4: Simplify right side
    456,481.20x = 197,362,441,540.08
  5. Step 5: Solve for x
    x = 197,362,441,540.08/456,481.20
  6. Step 6: Final answer
    x = 432,356.12

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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.