Home / 1,395,117.60-1,925,136.72-814,391.12

Finding the Fourth Proportional to 1,395,117.60, 1,925,136.72 and 814,391.12

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Solution

The fourth proportional to 1,395,117.60, 1,925,136.72 and 814,391.12 is: 1,123,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,117.60 : 1,925,136.72 = 814,391.12 : x
  2. Step 2: Convert to fraction form
    1,395,117.60/1,925,136.72 = 814,391.12/x
  3. Step 3: Cross multiply
    1,395,117.60x = 1,925,136.72 × 814,391.12
  4. Step 4: Simplify right side
    1,395,117.60x = 1,567,814,249,553.93
  5. Step 5: Solve for x
    x = 1,567,814,249,553.93/1,395,117.60
  6. Step 6: Final answer
    x = 1,123,786.45

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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.