Home / 1,387,042.54-2,080,602.69-677,638.06

Finding the Fourth Proportional to 1,387,042.54, 2,080,602.69 and 677,638.06

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Solution

The fourth proportional to 1,387,042.54, 2,080,602.69 and 677,638.06 is: 1,016,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,042.54 : 2,080,602.69 = 677,638.06 : x
  2. Step 2: Convert to fraction form
    1,387,042.54/2,080,602.69 = 677,638.06/x
  3. Step 3: Cross multiply
    1,387,042.54x = 2,080,602.69 × 677,638.06
  4. Step 4: Simplify right side
    1,387,042.54x = 1,409,895,570,482.38
  5. Step 5: Solve for x
    x = 1,409,895,570,482.38/1,387,042.54
  6. Step 6: Final answer
    x = 1,016,476.08

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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.