Home / 913,133.90-1,260,161.96-505,229.13

Finding the Fourth Proportional to 913,133.90, 1,260,161.96 and 505,229.13

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Solution

The fourth proportional to 913,133.90, 1,260,161.96 and 505,229.13 is: 697,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,133.90 : 1,260,161.96 = 505,229.13 : x
  2. Step 2: Convert to fraction form
    913,133.90/1,260,161.96 = 505,229.13/x
  3. Step 3: Cross multiply
    913,133.90x = 1,260,161.96 × 505,229.13
  4. Step 4: Simplify right side
    913,133.90x = 636,670,528,183.75
  5. Step 5: Solve for x
    x = 636,670,528,183.75/913,133.90
  6. Step 6: Final answer
    x = 697,236.77

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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.