Home / 1,251,304.80-1,726,809.48-678,354

Finding the Fourth Proportional to 1,251,304.80, 1,726,809.48 and 678,354

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Solution

The fourth proportional to 1,251,304.80, 1,726,809.48 and 678,354 is: 936,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,304.80 : 1,726,809.48 = 678,354 : x
  2. Step 2: Convert to fraction form
    1,251,304.80/1,726,809.48 = 678,354/x
  3. Step 3: Cross multiply
    1,251,304.80x = 1,726,809.48 × 678,354
  4. Step 4: Simplify right side
    1,251,304.80x = 1,171,388,117,995.92
  5. Step 5: Solve for x
    x = 1,171,388,117,995.92/1,251,304.80
  6. Step 6: Final answer
    x = 936,133.32

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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.