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Finding the Fourth Proportional to 611,027.80, 916,173.51 and 274,007.50

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Solution

The fourth proportional to 611,027.80, 916,173.51 and 274,007.50 is: 410,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,027.80 : 916,173.51 = 274,007.50 : x
  2. Step 2: Convert to fraction form
    611,027.80/916,173.51 = 274,007.50/x
  3. Step 3: Cross multiply
    611,027.80x = 916,173.51 × 274,007.50
  4. Step 4: Simplify right side
    611,027.80x = 251,038,413,041.33
  5. Step 5: Solve for x
    x = 251,038,413,041.33/611,027.80
  6. Step 6: Final answer
    x = 410,846.14

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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.