Home / 913,297.80-1,260,332.10-505,399.38

Finding the Fourth Proportional to 913,297.80, 1,260,332.10 and 505,399.38

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Solution

The fourth proportional to 913,297.80, 1,260,332.10 and 505,399.38 is: 697,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,297.80 : 1,260,332.10 = 505,399.38 : x
  2. Step 2: Convert to fraction form
    913,297.80/1,260,332.10 = 505,399.38/x
  3. Step 3: Cross multiply
    913,297.80x = 1,260,332.10 × 505,399.38
  4. Step 4: Simplify right side
    913,297.80x = 636,971,061,934.10
  5. Step 5: Solve for x
    x = 636,971,061,934.10/913,297.80
  6. Step 6: Final answer
    x = 697,440.71

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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.