Home / 826,573.17-1,240,332.81-321,068.75

Finding the Fourth Proportional to 826,573.17, 1,240,332.81 and 321,068.75

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Solution

The fourth proportional to 826,573.17, 1,240,332.81 and 321,068.75 is: 481,786.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,573.17 : 1,240,332.81 = 321,068.75 : x
  2. Step 2: Convert to fraction form
    826,573.17/1,240,332.81 = 321,068.75/x
  3. Step 3: Cross multiply
    826,573.17x = 1,240,332.81 × 321,068.75
  4. Step 4: Simplify right side
    826,573.17x = 398,232,097,485.02
  5. Step 5: Solve for x
    x = 398,232,097,485.02/826,573.17
  6. Step 6: Final answer
    x = 481,786.86

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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.