Home / 913,322.32-1,260,372.34-505,399.31

Finding the Fourth Proportional to 913,322.32, 1,260,372.34 and 505,399.31

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Solution

The fourth proportional to 913,322.32, 1,260,372.34 and 505,399.31 is: 697,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,322.32 : 1,260,372.34 = 505,399.31 : x
  2. Step 2: Convert to fraction form
    913,322.32/1,260,372.34 = 505,399.31/x
  3. Step 3: Cross multiply
    913,322.32x = 1,260,372.34 × 505,399.31
  4. Step 4: Simplify right side
    913,322.32x = 636,991,310,979.09
  5. Step 5: Solve for x
    x = 636,991,310,979.09/913,322.32
  6. Step 6: Final answer
    x = 697,444.15

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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.