Home / 1,328,008.80-1,988,902.80-904,994.40

Finding the Fourth Proportional to 1,328,008.80, 1,988,902.80 and 904,994.40

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Solution

The fourth proportional to 1,328,008.80, 1,988,902.80 and 904,994.40 is: 1,355,371.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,008.80 : 1,988,902.80 = 904,994.40 : x
  2. Step 2: Convert to fraction form
    1,328,008.80/1,988,902.80 = 904,994.40/x
  3. Step 3: Cross multiply
    1,328,008.80x = 1,988,902.80 × 904,994.40
  4. Step 4: Simplify right side
    1,328,008.80x = 1,799,945,896,144.32
  5. Step 5: Solve for x
    x = 1,799,945,896,144.32/1,328,008.80
  6. Step 6: Final answer
    x = 1,355,371.96

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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.