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Finding the Fourth Proportional to 718,786.68, 992,244.45 and 464,262

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Solution

The fourth proportional to 718,786.68, 992,244.45 and 464,262 is: 640,887.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,786.68 : 992,244.45 = 464,262 : x
  2. Step 2: Convert to fraction form
    718,786.68/992,244.45 = 464,262/x
  3. Step 3: Cross multiply
    718,786.68x = 992,244.45 × 464,262
  4. Step 4: Simplify right side
    718,786.68x = 460,661,392,845.90
  5. Step 5: Solve for x
    x = 460,661,392,845.90/718,786.68
  6. Step 6: Final answer
    x = 640,887.49

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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.