Home / 1,375,128.84-1,897,648.40-763,245.96

Finding the Fourth Proportional to 1,375,128.84, 1,897,648.40 and 763,245.96

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Solution

The fourth proportional to 1,375,128.84, 1,897,648.40 and 763,245.96 is: 1,053,263.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,128.84 : 1,897,648.40 = 763,245.96 : x
  2. Step 2: Convert to fraction form
    1,375,128.84/1,897,648.40 = 763,245.96/x
  3. Step 3: Cross multiply
    1,375,128.84x = 1,897,648.40 × 763,245.96
  4. Step 4: Simplify right side
    1,375,128.84x = 1,448,372,474,800.46
  5. Step 5: Solve for x
    x = 1,448,372,474,800.46/1,375,128.84
  6. Step 6: Final answer
    x = 1,053,263.11

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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.