Home / 1,988,090.80-2,983,691.40-923,264.80

Finding the Fourth Proportional to 1,988,090.80, 2,983,691.40 and 923,264.80

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Solution

The fourth proportional to 1,988,090.80, 2,983,691.40 and 923,264.80 is: 1,385,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,090.80 : 2,983,691.40 = 923,264.80 : x
  2. Step 2: Convert to fraction form
    1,988,090.80/2,983,691.40 = 923,264.80/x
  3. Step 3: Cross multiply
    1,988,090.80x = 2,983,691.40 × 923,264.80
  4. Step 4: Simplify right side
    1,988,090.80x = 2,754,737,243,682.72
  5. Step 5: Solve for x
    x = 2,754,737,243,682.72/1,988,090.80
  6. Step 6: Final answer
    x = 1,385,619.43

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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.