Home / 740,960.78-1,022,530.79-401,429.03

Finding the Fourth Proportional to 740,960.78, 1,022,530.79 and 401,429.03

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Solution

The fourth proportional to 740,960.78, 1,022,530.79 and 401,429.03 is: 553,974.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,960.78 : 1,022,530.79 = 401,429.03 : x
  2. Step 2: Convert to fraction form
    740,960.78/1,022,530.79 = 401,429.03/x
  3. Step 3: Cross multiply
    740,960.78x = 1,022,530.79 × 401,429.03
  4. Step 4: Simplify right side
    740,960.78x = 410,473,541,167.69
  5. Step 5: Solve for x
    x = 410,473,541,167.69/740,960.78
  6. Step 6: Final answer
    x = 553,974.72

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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.