Home / 727,205.88-1,090,443.81-423,698.28

Finding the Fourth Proportional to 727,205.88, 1,090,443.81 and 423,698.28

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Solution

The fourth proportional to 727,205.88, 1,090,443.81 and 423,698.28 is: 635,334.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,205.88 : 1,090,443.81 = 423,698.28 : x
  2. Step 2: Convert to fraction form
    727,205.88/1,090,443.81 = 423,698.28/x
  3. Step 3: Cross multiply
    727,205.88x = 1,090,443.81 × 423,698.28
  4. Step 4: Simplify right side
    727,205.88x = 462,019,171,048.63
  5. Step 5: Solve for x
    x = 462,019,171,048.63/727,205.88
  6. Step 6: Final answer
    x = 635,334.75

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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.