Home / 1,428,491.60-1,971,375.17-783,935.01

Finding the Fourth Proportional to 1,428,491.60, 1,971,375.17 and 783,935.01

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Solution

The fourth proportional to 1,428,491.60, 1,971,375.17 and 783,935.01 is: 1,081,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,491.60 : 1,971,375.17 = 783,935.01 : x
  2. Step 2: Convert to fraction form
    1,428,491.60/1,971,375.17 = 783,935.01/x
  3. Step 3: Cross multiply
    1,428,491.60x = 1,971,375.17 × 783,935.01
  4. Step 4: Simplify right side
    1,428,491.60x = 1,545,430,009,688.03
  5. Step 5: Solve for x
    x = 1,545,430,009,688.03/1,428,491.60
  6. Step 6: Final answer
    x = 1,081,861.46

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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.