Home / 939,960.39-1,297,146.99-510,240.81

Finding the Fourth Proportional to 939,960.39, 1,297,146.99 and 510,240.81

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Solution

The fourth proportional to 939,960.39, 1,297,146.99 and 510,240.81 is: 704,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,960.39 : 1,297,146.99 = 510,240.81 : x
  2. Step 2: Convert to fraction form
    939,960.39/1,297,146.99 = 510,240.81/x
  3. Step 3: Cross multiply
    939,960.39x = 1,297,146.99 × 510,240.81
  4. Step 4: Simplify right side
    939,960.39x = 661,857,330,866.66
  5. Step 5: Solve for x
    x = 661,857,330,866.66/939,960.39
  6. Step 6: Final answer
    x = 704,133.21

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1.5x scale

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.