Home / 1,272,560.76-1,908,797.40-325,939.68

Finding the Fourth Proportional to 1,272,560.76, 1,908,797.40 and 325,939.68

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Solution

The fourth proportional to 1,272,560.76, 1,908,797.40 and 325,939.68 is: 488,898.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,560.76 : 1,908,797.40 = 325,939.68 : x
  2. Step 2: Convert to fraction form
    1,272,560.76/1,908,797.40 = 325,939.68/x
  3. Step 3: Cross multiply
    1,272,560.76x = 1,908,797.40 × 325,939.68
  4. Step 4: Simplify right side
    1,272,560.76x = 622,152,813,740.83
  5. Step 5: Solve for x
    x = 622,152,813,740.83/1,272,560.76
  6. Step 6: Final answer
    x = 488,898.32

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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.