Home / 916,621.80-1,374,932.70-873,076.20

Finding the Fourth Proportional to 916,621.80, 1,374,932.70 and 873,076.20

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Solution

The fourth proportional to 916,621.80, 1,374,932.70 and 873,076.20 is: 1,309,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,621.80 : 1,374,932.70 = 873,076.20 : x
  2. Step 2: Convert to fraction form
    916,621.80/1,374,932.70 = 873,076.20/x
  3. Step 3: Cross multiply
    916,621.80x = 1,374,932.70 × 873,076.20
  4. Step 4: Simplify right side
    916,621.80x = 1,200,421,016,971.74
  5. Step 5: Solve for x
    x = 1,200,421,016,971.74/916,621.80
  6. Step 6: Final answer
    x = 1,309,614.30

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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.