Home / 1,405,035.64-1,938,996.14-861,066.32

Finding the Fourth Proportional to 1,405,035.64, 1,938,996.14 and 861,066.32

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Solution

The fourth proportional to 1,405,035.64, 1,938,996.14 and 861,066.32 is: 1,188,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,035.64 : 1,938,996.14 = 861,066.32 : x
  2. Step 2: Convert to fraction form
    1,405,035.64/1,938,996.14 = 861,066.32/x
  3. Step 3: Cross multiply
    1,405,035.64x = 1,938,996.14 × 861,066.32
  4. Step 4: Simplify right side
    1,405,035.64x = 1,669,604,274,334.80
  5. Step 5: Solve for x
    x = 1,669,604,274,334.80/1,405,035.64
  6. Step 6: Final answer
    x = 1,188,300.30

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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.