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Finding the Fourth Proportional to 1,295,928.54, 1,942,316.87 and 916,958.52

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Solution

The fourth proportional to 1,295,928.54, 1,942,316.87 and 916,958.52 is: 1,374,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,928.54 : 1,942,316.87 = 916,958.52 : x
  2. Step 2: Convert to fraction form
    1,295,928.54/1,942,316.87 = 916,958.52/x
  3. Step 3: Cross multiply
    1,295,928.54x = 1,942,316.87 × 916,958.52
  4. Step 4: Simplify right side
    1,295,928.54x = 1,781,024,002,486.23
  5. Step 5: Solve for x
    x = 1,781,024,002,486.23/1,295,928.54
  6. Step 6: Final answer
    x = 1,374,322.69

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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.