Home / 905,721.60-1,359,619.20-531,955.20

Finding the Fourth Proportional to 905,721.60, 1,359,619.20 and 531,955.20

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Solution

The fourth proportional to 905,721.60, 1,359,619.20 and 531,955.20 is: 798,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,721.60 : 1,359,619.20 = 531,955.20 : x
  2. Step 2: Convert to fraction form
    905,721.60/1,359,619.20 = 531,955.20/x
  3. Step 3: Cross multiply
    905,721.60x = 1,359,619.20 × 531,955.20
  4. Step 4: Simplify right side
    905,721.60x = 723,256,503,459.84
  5. Step 5: Solve for x
    x = 723,256,503,459.84/905,721.60
  6. Step 6: Final answer
    x = 798,541.74

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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.