Home / 1,428,118.83-1,970,937.45-816,152.07

Finding the Fourth Proportional to 1,428,118.83, 1,970,937.45 and 816,152.07

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Solution

The fourth proportional to 1,428,118.83, 1,970,937.45 and 816,152.07 is: 1,126,366.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,118.83 : 1,970,937.45 = 816,152.07 : x
  2. Step 2: Convert to fraction form
    1,428,118.83/1,970,937.45 = 816,152.07/x
  3. Step 3: Cross multiply
    1,428,118.83x = 1,970,937.45 × 816,152.07
  4. Step 4: Simplify right side
    1,428,118.83x = 1,608,584,687,049.04
  5. Step 5: Solve for x
    x = 1,608,584,687,049.04/1,428,118.83
  6. Step 6: Final answer
    x = 1,126,366.14

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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.