Home / 926,913.64-1,278,843.42-518,955.40

Finding the Fourth Proportional to 926,913.64, 1,278,843.42 and 518,955.40

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Solution

The fourth proportional to 926,913.64, 1,278,843.42 and 518,955.40 is: 715,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,913.64 : 1,278,843.42 = 518,955.40 : x
  2. Step 2: Convert to fraction form
    926,913.64/1,278,843.42 = 518,955.40/x
  3. Step 3: Cross multiply
    926,913.64x = 1,278,843.42 × 518,955.40
  4. Step 4: Simplify right side
    926,913.64x = 663,662,698,563.47
  5. Step 5: Solve for x
    x = 663,662,698,563.47/926,913.64
  6. Step 6: Final answer
    x = 715,991.94

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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.