Home / 916,855.40-1,375,283.10-580,932.20

Finding the Fourth Proportional to 916,855.40, 1,375,283.10 and 580,932.20

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Solution

The fourth proportional to 916,855.40, 1,375,283.10 and 580,932.20 is: 871,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,855.40 : 1,375,283.10 = 580,932.20 : x
  2. Step 2: Convert to fraction form
    916,855.40/1,375,283.10 = 580,932.20/x
  3. Step 3: Cross multiply
    916,855.40x = 1,375,283.10 × 580,932.20
  4. Step 4: Simplify right side
    916,855.40x = 798,946,236,905.82
  5. Step 5: Solve for x
    x = 798,946,236,905.82/916,855.40
  6. Step 6: Final answer
    x = 871,398.30

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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.