Home / 545,949.12-753,453.60-304,309.92

Finding the Fourth Proportional to 545,949.12, 753,453.60 and 304,309.92

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Solution

The fourth proportional to 545,949.12, 753,453.60 and 304,309.92 is: 419,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,949.12 : 753,453.60 = 304,309.92 : x
  2. Step 2: Convert to fraction form
    545,949.12/753,453.60 = 304,309.92/x
  3. Step 3: Cross multiply
    545,949.12x = 753,453.60 × 304,309.92
  4. Step 4: Simplify right side
    545,949.12x = 229,283,404,739.71
  5. Step 5: Solve for x
    x = 229,283,404,739.71/545,949.12
  6. Step 6: Final answer
    x = 419,972.11

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1.5x scale

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.