Home / 1,383,127.04-1,908,902.40-810,395.84

Finding the Fourth Proportional to 1,383,127.04, 1,908,902.40 and 810,395.84

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Solution

The fourth proportional to 1,383,127.04, 1,908,902.40 and 810,395.84 is: 1,118,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,127.04 : 1,908,902.40 = 810,395.84 : x
  2. Step 2: Convert to fraction form
    1,383,127.04/1,908,902.40 = 810,395.84/x
  3. Step 3: Cross multiply
    1,383,127.04x = 1,908,902.40 × 810,395.84
  4. Step 4: Simplify right side
    1,383,127.04x = 1,546,966,563,926.02
  5. Step 5: Solve for x
    x = 1,546,966,563,926.02/1,383,127.04
  6. Step 6: Final answer
    x = 1,118,455.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.