Home / 943,646.64-1,414,472.85-643,382.88

Finding the Fourth Proportional to 943,646.64, 1,414,472.85 and 643,382.88

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Solution

The fourth proportional to 943,646.64, 1,414,472.85 and 643,382.88 is: 964,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,646.64 : 1,414,472.85 = 643,382.88 : x
  2. Step 2: Convert to fraction form
    943,646.64/1,414,472.85 = 643,382.88/x
  3. Step 3: Cross multiply
    943,646.64x = 1,414,472.85 × 643,382.88
  4. Step 4: Simplify right side
    943,646.64x = 910,047,615,914.81
  5. Step 5: Solve for x
    x = 910,047,615,914.81/943,646.64
  6. Step 6: Final answer
    x = 964,394.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.