Home / 1,586,427.76-2,189,296.72-861,275.68

Finding the Fourth Proportional to 1,586,427.76, 2,189,296.72 and 861,275.68

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Solution

The fourth proportional to 1,586,427.76, 2,189,296.72 and 861,275.68 is: 1,188,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,427.76 : 2,189,296.72 = 861,275.68 : x
  2. Step 2: Convert to fraction form
    1,586,427.76/2,189,296.72 = 861,275.68/x
  3. Step 3: Cross multiply
    1,586,427.76x = 2,189,296.72 × 861,275.68
  4. Step 4: Simplify right side
    1,586,427.76x = 1,885,588,021,239.77
  5. Step 5: Solve for x
    x = 1,885,588,021,239.77/1,586,427.76
  6. Step 6: Final answer
    x = 1,188,574.78

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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.