Home / 820,860.64-1,231,295.09-371,054.88

Finding the Fourth Proportional to 820,860.64, 1,231,295.09 and 371,054.88

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Solution

The fourth proportional to 820,860.64, 1,231,295.09 and 371,054.88 is: 556,584.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,860.64 : 1,231,295.09 = 371,054.88 : x
  2. Step 2: Convert to fraction form
    820,860.64/1,231,295.09 = 371,054.88/x
  3. Step 3: Cross multiply
    820,860.64x = 1,231,295.09 × 371,054.88
  4. Step 4: Simplify right side
    820,860.64x = 456,878,050,009.27
  5. Step 5: Solve for x
    x = 456,878,050,009.27/820,860.64
  6. Step 6: Final answer
    x = 556,584.19

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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.