Home / 1,176,422.50-1,623,464.49-639,878.50

Finding the Fourth Proportional to 1,176,422.50, 1,623,464.49 and 639,878.50

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Solution

The fourth proportional to 1,176,422.50, 1,623,464.49 and 639,878.50 is: 883,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,422.50 : 1,623,464.49 = 639,878.50 : x
  2. Step 2: Convert to fraction form
    1,176,422.50/1,623,464.49 = 639,878.50/x
  3. Step 3: Cross multiply
    1,176,422.50x = 1,623,464.49 × 639,878.50
  4. Step 4: Simplify right side
    1,176,422.50x = 1,038,820,022,664.47
  5. Step 5: Solve for x
    x = 1,038,820,022,664.47/1,176,422.50
  6. Step 6: Final answer
    x = 883,033.11

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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.