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Finding the Fourth Proportional to 1,157,933.60, 1,738,455.60 and 739,066.40

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Solution

The fourth proportional to 1,157,933.60, 1,738,455.60 and 739,066.40 is: 1,109,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,933.60 : 1,738,455.60 = 739,066.40 : x
  2. Step 2: Convert to fraction form
    1,157,933.60/1,738,455.60 = 739,066.40/x
  3. Step 3: Cross multiply
    1,157,933.60x = 1,738,455.60 × 739,066.40
  4. Step 4: Simplify right side
    1,157,933.60x = 1,284,834,121,851.84
  5. Step 5: Solve for x
    x = 1,284,834,121,851.84/1,157,933.60
  6. Step 6: Final answer
    x = 1,109,592.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.