Home / 913,291.80-1,260,323.82-505,393.38

Finding the Fourth Proportional to 913,291.80, 1,260,323.82 and 505,393.38

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Solution

The fourth proportional to 913,291.80, 1,260,323.82 and 505,393.38 is: 697,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,291.80 : 1,260,323.82 = 505,393.38 : x
  2. Step 2: Convert to fraction form
    913,291.80/1,260,323.82 = 505,393.38/x
  3. Step 3: Cross multiply
    913,291.80x = 1,260,323.82 × 505,393.38
  4. Step 4: Simplify right side
    913,291.80x = 636,959,315,284.31
  5. Step 5: Solve for x
    x = 636,959,315,284.31/913,291.80
  6. Step 6: Final answer
    x = 697,432.43

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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.