Home / 740,668.88-1,022,185.98-418,438.10

Finding the Fourth Proportional to 740,668.88, 1,022,185.98 and 418,438.10

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Solution

The fourth proportional to 740,668.88, 1,022,185.98 and 418,438.10 is: 577,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,668.88 : 1,022,185.98 = 418,438.10 : x
  2. Step 2: Convert to fraction form
    740,668.88/1,022,185.98 = 418,438.10/x
  3. Step 3: Cross multiply
    740,668.88x = 1,022,185.98 × 418,438.10
  4. Step 4: Simplify right side
    740,668.88x = 427,721,559,317.84
  5. Step 5: Solve for x
    x = 427,721,559,317.84/740,668.88
  6. Step 6: Final answer
    x = 577,480.13

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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.