Home / 744,960.84-1,028,026.26-405,421.80

Finding the Fourth Proportional to 744,960.84, 1,028,026.26 and 405,421.80

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Solution

The fourth proportional to 744,960.84, 1,028,026.26 and 405,421.80 is: 559,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,960.84 : 1,028,026.26 = 405,421.80 : x
  2. Step 2: Convert to fraction form
    744,960.84/1,028,026.26 = 405,421.80/x
  3. Step 3: Cross multiply
    744,960.84x = 1,028,026.26 × 405,421.80
  4. Step 4: Simplify right side
    744,960.84x = 416,784,256,776.47
  5. Step 5: Solve for x
    x = 416,784,256,776.47/744,960.84
  6. Step 6: Final answer
    x = 559,471.36

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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.