Home / 1,029,712.80-1,544,860.80-319,812.60

Finding the Fourth Proportional to 1,029,712.80, 1,544,860.80 and 319,812.60

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Solution

The fourth proportional to 1,029,712.80, 1,544,860.80 and 319,812.60 is: 479,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,712.80 : 1,544,860.80 = 319,812.60 : x
  2. Step 2: Convert to fraction form
    1,029,712.80/1,544,860.80 = 319,812.60/x
  3. Step 3: Cross multiply
    1,029,712.80x = 1,544,860.80 × 319,812.60
  4. Step 4: Simplify right side
    1,029,712.80x = 494,065,949,086.08
  5. Step 5: Solve for x
    x = 494,065,949,086.08/1,029,712.80
  6. Step 6: Final answer
    x = 479,809.47

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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.