Home / 1,427,986.16-1,970,795.15-816,164.71

Finding the Fourth Proportional to 1,427,986.16, 1,970,795.15 and 816,164.71

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Solution

The fourth proportional to 1,427,986.16, 1,970,795.15 and 816,164.71 is: 1,126,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,986.16 : 1,970,795.15 = 816,164.71 : x
  2. Step 2: Convert to fraction form
    1,427,986.16/1,970,795.15 = 816,164.71/x
  3. Step 3: Cross multiply
    1,427,986.16x = 1,970,795.15 × 816,164.71
  4. Step 4: Simplify right side
    1,427,986.16x = 1,608,493,450,712.89
  5. Step 5: Solve for x
    x = 1,608,493,450,712.89/1,427,986.16
  6. Step 6: Final answer
    x = 1,126,406.89

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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.