Home / 842,634.09-1,163,443.91-520,785.45

Finding the Fourth Proportional to 842,634.09, 1,163,443.91 and 520,785.45

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Solution

The fourth proportional to 842,634.09, 1,163,443.91 and 520,785.45 is: 719,060.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,634.09 : 1,163,443.91 = 520,785.45 : x
  2. Step 2: Convert to fraction form
    842,634.09/1,163,443.91 = 520,785.45/x
  3. Step 3: Cross multiply
    842,634.09x = 1,163,443.91 × 520,785.45
  4. Step 4: Simplify right side
    842,634.09x = 605,904,657,615.18
  5. Step 5: Solve for x
    x = 605,904,657,615.18/842,634.09
  6. Step 6: Final answer
    x = 719,060.22

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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.