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Finding the Fourth Proportional to 1,354,966.70, 1,869,854.04 and 751,354.70

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Solution

The fourth proportional to 1,354,966.70, 1,869,854.04 and 751,354.70 is: 1,036,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,966.70 : 1,869,854.04 = 751,354.70 : x
  2. Step 2: Convert to fraction form
    1,354,966.70/1,869,854.04 = 751,354.70/x
  3. Step 3: Cross multiply
    1,354,966.70x = 1,869,854.04 × 751,354.70
  4. Step 4: Simplify right side
    1,354,966.70x = 1,404,923,611,918.72
  5. Step 5: Solve for x
    x = 1,404,923,611,918.72/1,354,966.70
  6. Step 6: Final answer
    x = 1,036,869.48

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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.