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Finding the Fourth Proportional to 1,404,750.22, 1,938,560.42 and 760,170.34

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Solution

The fourth proportional to 1,404,750.22, 1,938,560.42 and 760,170.34 is: 1,049,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,750.22 : 1,938,560.42 = 760,170.34 : x
  2. Step 2: Convert to fraction form
    1,404,750.22/1,938,560.42 = 760,170.34/x
  3. Step 3: Cross multiply
    1,404,750.22x = 1,938,560.42 × 760,170.34
  4. Step 4: Simplify right side
    1,404,750.22x = 1,473,636,133,581.94
  5. Step 5: Solve for x
    x = 1,473,636,133,581.94/1,404,750.22
  6. Step 6: Final answer
    x = 1,049,037.84

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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.