Home / 913,183.07-1,260,013.47-505,208.69

Finding the Fourth Proportional to 913,183.07, 1,260,013.47 and 505,208.69

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Solution

The fourth proportional to 913,183.07, 1,260,013.47 and 505,208.69 is: 697,088.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,183.07 : 1,260,013.47 = 505,208.69 : x
  2. Step 2: Convert to fraction form
    913,183.07/1,260,013.47 = 505,208.69/x
  3. Step 3: Cross multiply
    913,183.07x = 1,260,013.47 × 505,208.69
  4. Step 4: Simplify right side
    913,183.07x = 636,569,761,020.88
  5. Step 5: Solve for x
    x = 636,569,761,020.88/913,183.07
  6. Step 6: Final answer
    x = 697,088.88

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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.