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Finding the Fourth Proportional to 1,157,894.60, 1,738,397.10 and 739,027.40

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Solution

The fourth proportional to 1,157,894.60, 1,738,397.10 and 739,027.40 is: 1,109,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,894.60 : 1,738,397.10 = 739,027.40 : x
  2. Step 2: Convert to fraction form
    1,157,894.60/1,738,397.10 = 739,027.40/x
  3. Step 3: Cross multiply
    1,157,894.60x = 1,738,397.10 × 739,027.40
  4. Step 4: Simplify right side
    1,157,894.60x = 1,284,723,088,980.54
  5. Step 5: Solve for x
    x = 1,284,723,088,980.54/1,157,894.60
  6. Step 6: Final answer
    x = 1,109,533.71

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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.