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Finding the Fourth Proportional to 880,003.40, 1,320,005.10 and 775,027.40

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Solution

The fourth proportional to 880,003.40, 1,320,005.10 and 775,027.40 is: 1,162,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,003.40 : 1,320,005.10 = 775,027.40 : x
  2. Step 2: Convert to fraction form
    880,003.40/1,320,005.10 = 775,027.40/x
  3. Step 3: Cross multiply
    880,003.40x = 1,320,005.10 × 775,027.40
  4. Step 4: Simplify right side
    880,003.40x = 1,023,040,120,639.74
  5. Step 5: Solve for x
    x = 1,023,040,120,639.74/880,003.40
  6. Step 6: Final answer
    x = 1,162,541.10

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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.