Home / 841,869.56-1,262,815.27-280,904.06

Finding the Fourth Proportional to 841,869.56, 1,262,815.27 and 280,904.06

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Solution

The fourth proportional to 841,869.56, 1,262,815.27 and 280,904.06 is: 421,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,869.56 : 1,262,815.27 = 280,904.06 : x
  2. Step 2: Convert to fraction form
    841,869.56/1,262,815.27 = 280,904.06/x
  3. Step 3: Cross multiply
    841,869.56x = 1,262,815.27 × 280,904.06
  4. Step 4: Simplify right side
    841,869.56x = 354,729,931,724.44
  5. Step 5: Solve for x
    x = 354,729,931,724.44/841,869.56
  6. Step 6: Final answer
    x = 421,359.73

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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.