Home / 756,731.76-1,044,480.60-455,103.60

Finding the Fourth Proportional to 756,731.76, 1,044,480.60 and 455,103.60

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Solution

The fourth proportional to 756,731.76, 1,044,480.60 and 455,103.60 is: 628,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,731.76 : 1,044,480.60 = 455,103.60 : x
  2. Step 2: Convert to fraction form
    756,731.76/1,044,480.60 = 455,103.60/x
  3. Step 3: Cross multiply
    756,731.76x = 1,044,480.60 × 455,103.60
  4. Step 4: Simplify right side
    756,731.76x = 475,346,881,190.16
  5. Step 5: Solve for x
    x = 475,346,881,190.16/756,731.76
  6. Step 6: Final answer
    x = 628,157.70

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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.