Home / 841,869.51-1,262,815.20-280,904.01

Finding the Fourth Proportional to 841,869.51, 1,262,815.20 and 280,904.01

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Solution

The fourth proportional to 841,869.51, 1,262,815.20 and 280,904.01 is: 421,359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,869.51 : 1,262,815.20 = 280,904.01 : x
  2. Step 2: Convert to fraction form
    841,869.51/1,262,815.20 = 280,904.01/x
  3. Step 3: Cross multiply
    841,869.51x = 1,262,815.20 × 280,904.01
  4. Step 4: Simplify right side
    841,869.51x = 354,729,853,568.95
  5. Step 5: Solve for x
    x = 354,729,853,568.95/841,869.51
  6. Step 6: Final answer
    x = 421,359.66

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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.