Home / 913,626.72-1,260,789.60-505,719.81

Finding the Fourth Proportional to 913,626.72, 1,260,789.60 and 505,719.81

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Solution

The fourth proportional to 913,626.72, 1,260,789.60 and 505,719.81 is: 697,884.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,626.72 : 1,260,789.60 = 505,719.81 : x
  2. Step 2: Convert to fraction form
    913,626.72/1,260,789.60 = 505,719.81/x
  3. Step 3: Cross multiply
    913,626.72x = 1,260,789.60 × 505,719.81
  4. Step 4: Simplify right side
    913,626.72x = 637,606,276,961.98
  5. Step 5: Solve for x
    x = 637,606,276,961.98/913,626.72
  6. Step 6: Final answer
    x = 697,884.88

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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.